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	New pool liner		2021-07-14
		Kareena pose la question : I have a rectangular prism shaped pond that are 4ft by 8ft by 2ft. My pond is lined on the sides and bottom with a pool liner so that it doesn't leak (the top of the pool does NOT have a liner). I am redoing my pool and would like to increase the size of the pond. Each dimension will increase by the same amount, and the size of the pool liner will double. How much I am increasing each dimension of the pond? Give an exact answer and than an approx. answer rounded to the nearest tenth. Penny Nom lui répond.
	A quadratic equation problem		2019-02-26
		Em pose la question : One root of the equation 2x^2 + bx - 24 = 0 is -8. What are the possible values of b and the other root? Penny Nom lui répond.
	A line cuts a curve		2018-11-11
		roxanne pose la question : Hello, i need to ask a question, do you mind explaining and writing the formula of how to solve equations such as "find the set values of k for which the line y-2x-5 cuts the curve y=x^2 +kx+11" please Penny Nom lui répond.
	The price of eggs rises 10 cents per dozen		2018-11-10
		Maddie pose la question : Hi! I'm currently struggling with a word problem that says: "If the price of eggs rises 10 cents per dozen, one will be able to get 2 dozen fewer eggs with $6.00 than was possible at the lower price. What is the lower price? We are working on completing the square and all of the problems I've done so far in this chapter require using that method. If possible and needed, could you explain how to set up the equation? Thank you so much! I appreciate all your help!! Penny Nom lui répond.
	Factoring a quadratic		2018-04-02
		Billy pose la question : I need help factoring the following question: 4x(squared) -10x +16. Penny Nom lui répond.
	The intersection of a curve and a line		2018-03-08
		lola pose la question : find the set of values of constant C for which the line y=x+c intersects the curve y=2 square root x at, at two distinct points Penny Nom lui répond.
	Quadratic Equations		2017-03-28
		Natalie pose la question : Hi Maths Central, I am having trouble with quadratic equations. The question is: Calculate the length 'l' of a rectangular pool by creating and solving a quadratic equation. 1. The rectangular pool is of equal area to a square pool, and a circular pool (5.70m^2). 2. The length of the rectangular pool must be 2m longer than the width 'w'. Thank you so, so much for your help, Maths Central! Penny Nom lui répond.
	Solve 3x^2-19x-14=0 for x		2017-03-15
		nick pose la question : I'm an 8th grader and am quite confused with this equation: 3x^2-19x-14=0 The answer is: -2/3 , 7 But I'm not sure how to solve for it. Penny Nom lui répond.
	Form the quadratic equation which has given roots		2017-01-16
		Tharshini pose la question : Given a and B are the roots of the quadratic equation x^2+4x+7=0. Form the quadratic equation which has the roots 3a-1 and 3B-1 Penny Nom lui répond.
	Solve 2^2x + 3(2^x) - 4 = 0		2016-04-27
		Lloyd pose la question : Solve the equation 2^2x + 3(2^x) - 4 = 0 Penny Nom lui répond.
	A quadratic equation with equal roots		2016-01-23
		abdiwahid pose la question : X^2+2ax+4x+9a=0 is quadratic equation which has equal roots. Find the possible value of a? Penny Nom lui répond.
	Find the quadratic equation whose roots are -4 and 7		2016-01-03
		sadiya pose la question : Find the quadratic equation whose roots are -4 and 7 Penny Nom lui répond.
	Fencing around a rectangular field		2015-11-11
		Darlene pose la question : Question from Darlene, a parent: A farmer has 10,000 meters of fencing to use to create a rectangular field. He plans on using some of the fencing to divide the rectangular field into two plots of land by constructing a fence inside the rectangle that is parallel to one of the sides. Let X be the width of the rectangular field. Write an equation to express the area of the field as a function of X. Find the value of X that maximizes the area of the field. Penny Nom lui répond.
	A quadratic equation with known roots		2015-11-01
		Awudu pose la question : Given the roots of the quadratic equation ax^2+5x+c=0 are 5 and -2/3,find the values of a,b and c. Penny Nom lui répond.
	2p^2+4p=16. How do i get p?		2015-09-22
		Dohie pose la question : How do i solve this? 2p^2+4p=16. How do i get p? Thanks Penny Nom lui répond.
	Two consecutive positive integers		2015-03-01
		meha pose la question : Find two consecutive positive integers , sum of whose squares is 365. Penny Nom lui répond.
	Two quadratic equations		2014-11-20
		rajesh pose la question : Sir, I would like to discuss on question- -Find the value of variable X and Y, equations are X2+Y2+2XY=25 X2+Y2-2XY=1 Sir, my point is equation looks not so easy.My opinion is there many (more than 4)value possible for both X and Y. Kindly help me. Waiting for your response. regards, rajesh Penny Nom lui répond.
	A quadratic function modelling the heightof a flea jump		2014-11-02
		Hannah pose la question : A flea jumps from the ground to a height of 30 cm and travels 15 cm horizontally from where it started. Suppose the origin is located at the point from which the flea jumped. Determine a quadratic function in vertex form to model the height of the flea compared to the horizontal distance travelled Penny Nom lui répond.
	Two quadratic polynomials		2014-10-28
		khushboo pose la question : The zeroes of a quadratic polynomial x^2+ax+b are 'c' and 'd' and the zeroes of a quadratic polynomial x^2+cx+d=0 are 'a' and 'b'. find the numerical value of a+b+c+d where a, b, c and d are non zero integers. Penny Nom lui répond.
	A quarter mile row of trees		2014-10-09
		junna pose la question : a farmer would like to plant trees on one side of his lot which is 1/4 of a mile in a length His friend advised him that if he would plant the trees 5 feet farther apart,he would need 44 fewer trees.If the farmer would take the advice, how many trees would he plant? Penny Nom lui répond.
	One zero to a quadratic expression		2014-10-06
		Kevin pose la question : Find a value of n such that f(x) = 3^x2 + nx + 6 only has one zero, is this the only solution to the question? Penny Nom lui répond.
	A quadratic equation		2014-09-20
		Najah pose la question : (E): (m2_1)x2 _ (m+3)x+4_m2=0 A) for what values of m is the equation (E) quadratic? B) for what value of m is the real number -1 a root of (E) Penny Nom lui répond.
	The inverse of f(x) = x^2 - x		2014-08-22
		Tyler pose la question : Find the Inverse function of: f(x) = x^2 - x Robert Dawson lui répond.
	A quadratic equation given the roots		2014-04-23
		Sarah pose la question : How do you find the quadratic formula when you're given just the roots ... X=-3 X= 1/3 Thanks ! Robert Dawson lui répond.
	A quadratic equation		2013-11-27
		corinanna pose la question : Hi, How do you find a quadratic equation given the domain & range, & or the y-intercept? Penny Nom lui répond.
	Solve 0=-2(x-5)^2+4		2013-11-17
		Leila pose la question : How do you find the solution to 0=-2(x-5)^2+4 Penny Nom lui répond.
	A quadratic with no real roots		2013-07-15
		Pranav pose la question : If ax^2+bx-5=0 has no real roots. Then d sign of 1) a+b-5 2) (25a-5b-5)(4a+2b-5) will be what ?? Penny Nom lui répond.
	The quadratic formula		2013-01-03
		itsel pose la question : Find the discriminant ans use it to determine the use the quadratic formula to solve the equasion -2x^2+3x+2=0 Penny Nom lui répond.
	Two quadratic equations		2012-11-22
		fahmie pose la question : graph and solve the intersection of the following equations: x^2+y^2=4 x^2+2y=4 Penny Nom lui répond.
	A quadratic function		2012-06-08
		Salehah pose la question : Hi there, i dont know how to do quadratic equations. So how do i do the question, that says: x-int -4 and 2, and y-int of 4? and we are to maek a quadratic function with this information. Please help! Thank you very much! Salehah Robert Dawson lui répond.
	Factoring a quadratic		2012-03-13
		Makell pose la question : X^2 + 32x + 220 = 0 Penny Nom lui répond.
	Designing aluminum cans		2012-01-08
		swathi pose la question : A company manufactures aluminum cans. one customer places an order for cans that must be 15 cm high, with a volume of 1200cm cube. a) use the formula V= pie r squared h to determine the radius that the company should use to manufacture these cans b) graph the function that corresponds to 0 = pie r squared h minus V to determine the radius. Penny Nom lui répond.
	A parabolic arch		2012-01-04
		Swathi pose la question : A plan for an arch in the shape of a parabola is drawn on a grid with a scale of 1m per square. The base of the arch is located at the points (0,0) and (15,0). The maximum height of the arch is 18m. a)Determine the quadratic function that models that arch b)State the domain and range of the function Penny Nom lui répond.
	The graph of a quadratic function		2011-12-27
		Thomas pose la question : sketch a quadratic function with zeros at -3 and 1 Penny Nom lui répond.
	Three consecutive numbers		2011-11-29
		Michael pose la question : Find three consecutive numbers such that the second number squared is equal to the first and third added together Penny Nom lui répond.
	Expanding the size of a table		2011-10-16
		Ericka pose la question : You are working as a carpenter in an industrial Shop. A customer came to you and inquired about the size of the table which would be fitted in her room. She informed you that she had already a 1.5 x 1m table in her room but she wanted to maximize the space by adding the same amount to is length and width. She is planning to occupy a 3 square meter place on her room for her to work comfortably. She is requesting you a written recommendation before she asked to make a table. What amount should be added to both sides to maximize a 3 square meter area? Penny Nom lui répond.
	A picture with a frame		2011-08-19
		Aniish pose la question : A picture 8inches by 12inches is placed in a frame of uniform width. If the area of the frame equals the area of the picture find the width of the frame? Penny Nom lui répond.
	(4x-5)(3x+2)=0		2011-05-04
		Corina pose la question : solve: (4x-5)(3x+2)=0 Penny Nom lui répond.
	The radius of a cylinder		2011-04-27
		Jazmin pose la question : Hi, I don't understand how to find the radius in a cylinder with only the surface area (143.7) and the height (0.8)? I know that the formula is 2pir2+2pirh, but I don't see how to isolate the r? I appreciate your help. Penny Nom lui répond.
	The quadratic with two given roots and a constant term		2011-04-19
		Lindah pose la question : how do I food quadratic with two given roots and a constant term? Penny Nom lui répond.
	Solve x(x-3) = 5 (x+4)		2011-04-19
		Ashley pose la question : I have to solve using the quadratic formula. And my answer should be in simplest exact form. And I can't approximate. I really need help to prepare for a test .... x(x-3) = 5 (x+4) Penny Nom lui répond.
	Throwing a football		2011-02-08
		Janet pose la question : a football is thrown into the air from 2 meters high. After 1 second it is 6.9 meters high. After another second it is 2 meters high. How high is it after 1.02 seconds and .05 seconds? when will it reach 5.136 meters? I am not sure how to extract the numbers I need and what equations to use them in? Stephen La Rocque lui répond.
	Identify each polynomial by its degree and number of terms		2011-01-10
		betty pose la question : Write in standard form and identify each polynomial by its degree and number of terms. How do you do this? Penny Nom lui répond.
	An algebraic equation with fractions		2010-09-10
		leah pose la question : If 6/x - (x-1)/2 = 4 then the LCD is 2x, right? so you get 12/2x - (x2-x)/2x = 8x/2x, right? then what do you do with the 2x when you turn it into a quadratic equation? Penny Nom lui répond.
	The suspension cables of a bridge		2010-07-29
		Mike pose la question : what is the formula for the suspension cables of a bridge. The towers are 200 ft above the roadway The towers are 3400 ft apart The cable if at 8ft in the middle of the span Robert Dawson lui répond.
	The intersection of two graphs		2010-06-27
		Austin pose la question : In depth explanation of how to find the intersection points of functions y=-4t+300 and y=-4.9(t-5)^2+300 Stephen La Rocque lui répond.
	A quadratic equation with imaginary numbers		2010-06-03
		Alissa pose la question : I am solving a quadratic equation and I got this far; (x-4+i)(x-4-i)=0 but how do I add the imaginary numbers i know you multiply x by x and then add -4 + -4 but what do you do with the i's? Penny Nom lui répond.
	The product of two consecutive even integers		2010-05-11
		Terry pose la question : The product of two consecutive even integers is 14 more than their sum. Find the integers. Penny Nom lui répond.
	Modelling an underpass		2010-05-11
		Sue pose la question : An engineer at the Ministry of Transport is creating the plans for a new road. This road will cross the path of a busy railway track so it will be necessary to built an underpass for this road. This underpass will be in the shape of a parabolic arch. The specifications include: -the road must be at least 10 m wide and it must have shoulders at least 2 m wide on either side of the road. -there must be a clearance of 3 m over all areas of the road. What quadratic equation could you use to model this bridge. Penny Nom lui répond.
	A quadratic equation		2010-05-03
		Millie pose la question : (3x-4)(5xplus2)=0 Penny Nom lui répond.
	A model for the population of a Canadian city		2010-04-07
		jess pose la question : Let t^2 represent t-squared. The population of a Canadian City is modelled by: f(t) = 12t^2 + 800t + 40,000, where t is the time in years. When t= 0, the year is 2007. a) According to the model, what will the population be in 2010? B) In what year is the population predicted to be 300,000? Penny Nom lui répond.
	A quadratic equation		2010-03-15
		rachelle pose la question : under certain condition, it is found that the cost of operating an automobile as a function of speed is approximated by a quadratic equation. use the data shown below to find the function. then use the function to determine the cost of operating the automobile at 60mph. speed (in miles per hour) operating cost per mile(in cents) 10 22 20 20 50 20 Penny Nom lui répond.
	A piece of string 8 inches long is cut in two pieces		2010-02-02
		Susan pose la question : If you have a piece of string 8 inches long and cut it in two pieces. Then take the pieces and forms each into a square such that the area of each squares added together equals 2. How long are the sides of the squares? Susan Penny Nom lui répond.
	The discriminant		2010-01-17
		Sonjonnia pose la question : What is the value of the discriminant? 16x^=16x-4 Penny Nom lui répond.
	The minimum point of a quadratic		2009-12-31
		rachel pose la question : y=0.0008x^2-0.384x What is the minimum point of this equation? Penny Nom lui répond.
	Maximizing the area of a rectangle		2009-12-17
		rachel pose la question : A rectangular field is to be enclosed by 400m of fence. What dimensions will give a maximum area? Penny Nom lui répond.
	Simplifying a quadratic expression		2009-12-07
		Sabbie pose la question : Hi, I need help solving this equation for my physics homework,so I can solve the quadratic equations for x and y. I've derived the following equations from the information provided in the question. 2a+3b = 4 -- 1 2a^2 + 3b^2 = 62 -- 2 a=2-(3/2)b is substituted into equation 2. so, i get 2 (2-(3/2)b)^2 + 3b^2 = 62 this is where the problem begins. i cannot work through this to get to the correct quadratic equation 5b^2-8b-36=0 I can't seem to be able to figure out where I keep going wrong. I would really appreciate it if you could give me a step-by-step breakdown of the workout. thanks! Penny Nom lui répond.
	Factoring		2009-11-19
		danyelle pose la question : 81x^2+36x+4 factoring i dont understand it at all Robert Dawson lui répond.
	The roots of a polynomial		2009-11-03
		Jess pose la question : Find the value of a positive integer k such that f(x)=x^2 - 2kx + 55 has roots at k +3 and k - 3. Penny Nom lui répond.
	Quadratic equations		2009-08-30
		jovian pose la question : how can i find the quadratic equation of the roots 2/5 and -1/3? Stephen La Rocque lui répond.
	Factoring		2009-08-23
		Bj pose la question : Solve for x: 5x^2 - 35x = 0 Stephen La Rocque lui répond.
	Factoring a quadratic		2009-06-16
		Rebecca pose la question : solve the quadratic equation by factoring. a) x(squared)+7x+10=0 Stephen La Rocque lui répond.
	4cos^2 (3x) + 3sin (3x) = 1		2009-05-05
		Cheryl pose la question : Find all solutions of the following equation and show how to do this algebraically. 4cos^2 (3x) + 3sin (3x) = 1 Harley Weston lui répond.
	A quadratic equation with roots (4-i) and (4+i)		2009-05-05
		Kelly pose la question : find a quadratic equation with roots (4-i) and (4+i) Harley Weston lui répond.
	Completing the square		2009-04-27
		Daniel pose la question : I tried following an example of yours but I still couldn't figure it out. Here is my question, 2x^2 - 6x + 1 = 0. Any help would be greatly appreciated. Stephen La Rocque lui répond.
	cos2x = sinx		2009-04-19
		stacey pose la question : solve the equation cos2x = sinx for 0 < x < 2 pi giving the answer in terms of pi. Harley Weston lui répond.
	Winding paper after a break		2009-04-10
		Olen pose la question : Question from Olen: I work in a paper mill and have been handed the task to search for a formula to determine how much paper needs to be added to a parent roll to make up the difference at the winder. (Ex. The spool diameter at the reel is 18.25" we measure roughly 33.5" to make two 58" rolls in the winder. If the is a paper break and the roll diameter in the winder is 30" how much do I add to a single parent roll (22" roughly) to make one 58 " and the 28" needed at the winder. I would appreciate any help to complete this task. I would like to be able to build a chart that operators can refer to based on what is needed. Thank you. Harley Weston lui répond.
	Substitution in a quadratic		2009-03-09
		Kieran pose la question : How could I work this out please f(x)= 3xsquared - 4x + 2 if f(2x) Penny Nom lui répond.
	Intercepts in a Quadratic Function		2009-02-22
		Barb pose la question : I have a question I need help with please. What are the number of x and y intercepts that quadratic function can have and why? Thanks. Janice Cotcher lui répond.
	Simultaneous equations with an xy term		2009-02-01
		angelee pose la question : xy+5x-2y-10=0 2x+y=1 Penny Nom lui répond.
	ax^2 + bx + c = 0 has no real roots and....		2009-01-26
		Alberto pose la question : The equation ax^2 + bx + c = 0 has no real roots and a + b + c < 0 . Chose the right answer: (A) c > 0 (B) c <= 0 (C) c = 0 (D) c >= 0 (E) c < 0 Explain the choice. Robert Dawson and Harley Weston lui répond.
	Gravity's Effect at a Distance		2008-12-06
		ROHAN pose la question : AT WHAT HEIGHT FROM THE SURFACE OF EARTH,THE WEIGHT OF THE BODY BECOMES HALF? (RADIUS OF THE EARTH = 6400) Stephen La Rocque lui répond.
	What is so important about quadratics?		2008-11-29
		zoe pose la question : what is so important about quadratics? Harley Weston lui répond.
	Quadratic equations arising from practical problems		2008-11-24
		Lenval pose la question : Why do quadratic equations arising from practical problems often give physically impossible solutions such as negative distances, negative times or, say, a polygon with a negative number of sides? For example: "A river in flood carries a tree t-squared - 23t metres downstream in t seconds. How long does it take for the tree to be carried 50 metres downstream?" This gives t=25 and t=-2. Please explain the second 'solution', which is not physically possible. Chris Fisher and Victoria West lui répond.
	Factor 9x^2 + 6x + 4		2008-11-21
		Jonah pose la question : how can i solve this by factoring: 9x^2 + 6x + 4 Harley Weston lui répond.
	A quadratic		2008-10-27
		Giselle pose la question : 3x squared minus 2x equals -5 Penny Nom lui répond.
	Solving an Equation with a Square Root		2008-10-05
		Jonathan pose la question : the square root of 3x+18 = x 3x+18 are within the square root Victoria West lui répond.
	cos^2x - 3cosx = 1		2008-09-29
		Danielle pose la question : cos2x - 3cosx = 1 Penny Nom lui répond.
	Finding Traveling Time of a Projectile Given a Formula		2008-09-17
		David pose la question : A juggler tosses a ballinto the air with a velocity of 40ft/sec from a height of 4 ft. Use s= -6t^2 + vot+so to find how long it takes for the ball to return to the height of 4 ft. I was wondering how should i start this out, and can you give me a brief explanation on the formula they ask you to use? thx Janice Cotcher lui répond.
	The Width of a Mown Strip of Lawn		2008-09-15
		Rimi pose la question : USE FACTORING, QUAD FORMULA, AND COMPLETE THE SQUARE! Chris cuts half a rectangular lawn, 40m by 30m, by mowing strips of equal width around the perimeter. Jonah cuts the small rectangle left. How wide a strip does Chris cut so that they share the work equally? Harley J Weston lui répond.
	y^2+3yz-8z-4z=0		2008-08-17
		Rae pose la question : y^2+3yz-8z-4z=0 Penny Nom lui répond.
	Two problems involving reciprocals		2008-08-10
		Dee pose la question : I have a few questions that im have trouble working out... 1. One number is three times another number; if each is increased by 1 the sum of the reciprocals is 10/21. Find the numbers 2.A tank can be filled by 2 pipes together in 6 hours; if the larger pipe alone takes 5 hours less than the smaller to fill the tank, find the time in which each pipe alone would fill the tank Penny Nom lui répond.
	algebra		2008-07-31
		Eric pose la question : Would you please solve & explain this equation to me: x^2+2x=x(x+2)? Thank you Penny Nom & Stephen La Rocque lui répond.
	Width of a Garden Path		2008-07-30
		Erin pose la question : A rectangular garden has dimensions of 18 feet by 13 feet. A gravel path of uniform width is to be built around the garden. How wide can the path be if there is enough gravel for 516 square feet? Janice Cotcher lui répond.
	Factoring a quadratic trinomial		2008-07-21
		Jeff pose la question : c^2+4c+4 x^2-7x-18 Penny Nom lui répond.
	A Falling Rock		2008-07-11
		Rita pose la question : This question has 3 parts. If a rock falls from a height of 20 meters on the planet Jupiter, its height H (in meters) after x seconds is about H(x) = 20 - 13x^2 (a) What is the height of the rock when x = 1.2 seconds? (b) When is the height of the rock 15 meters? (c) When does the rock strike the ground? Thank you Janice Cotcher lui répond.
	Sum and product of the roots of a quadratic		2008-07-03
		Gautam pose la question : If a and b are the roots of x^2+px+1=0 and c and d are the roots of x^2+qx+1=0 prove that (a-c)(b-c)(a+d)(b+d)=q^2-p^2 Regards Gautam Harley Weston lui répond.
	3y^2 - 48 = 0		2008-06-23
		marquis pose la question : 3y^2 - 48 = 0 Stephen La Rocque lui répond.
	A quadratic equation		2008-06-03
		Drew pose la question : A solution of x^2-8x=-17 is -4 or -4+I or 4 or 4+i Janice Cotcher lui répond.
	The area of a rectangle		2008-05-27
		Becky pose la question : the area of a rectangular lot is represented by 6t^2+13t-5. What are the length and the width of the rectangular lot? Harley Weston lui répond.
	Factor and solve s1^2 - 10s1 - 200 = 0		2008-04-29
		KIM pose la question : please factor and solve s1^2 - 10s1 - 200 = 0 Stephen La Rocque and Penny Nom lui répond.
	Find the quadratic equation with roots at (3-i) and its complex conjugate		2008-04-22
		Tiffany pose la question : Find the quadratic equation with roots at (3-i) and its complex conjugate. Penny Nom lui répond.
	A quadratic equation with odd coefficients		2008-04-15
		Manashi pose la question : If p,q,r be any odd integers, then prove that the roots of the quadratic equation px^2+qx+r=0 can't be rational . Stephen La Rocque lui répond.
	A rectangle word problem		2008-04-10
		Nick pose la question : A rectangle is twice as long as it is wide. If the length and width are both increased by 5cm, the resulting rectangle has an area of 50cm^2. Find the dimensions of the original. Penny Nom lui répond.
	The product of the roots		2008-03-19
		Rebecca pose la question : Determine the product of the roots of the equation (x-1)(x-2) + (x-2)(x-5)=0 Penny Nom lui répond.
	The sum and product of the roots of a quadratic		2008-03-16
		Katelyn pose la question : Write the quadratic equation.... Sum of the roots = 16 Product of the roots = -80 Penny Nom lui répond.
	(x^2+x-22)^4/3=16		2008-03-11
		Ryan pose la question : (x^2+x-22)^4/3=16 I keep on getting thrown off because of the fractional exponent I couldn't find an example like this one Stephen La Rocque lui répond.
	Completing the square		2008-03-11
		Ryan pose la question : solve for x by completing the squares, x^2+4x-8=0 Stephen La Rocque lui répond.
	A complex quadratic		2008-02-18
		Ash pose la question : z^2-(6+2i)z+(8+6i)=0 Solve for Z Steve La Rocque and Penny Nom lui répond.
	Shooting an arrow over a wall		2007-12-11
		Amy pose la question : The path of a large arrow fired from a non torsion catapult can be modeled by y=-0.0044x^2 + 1.68x, where x is the distance the arrow travelled (in yards) and y is the height of the arrow (in yards). Given the height of a castle wall, find the safest distance from the wall to launch an arrow over a 120 yard-high wall. Victoria West and Stephen La Rocque lui répond.
	A quadratic function word problem		2007-11-12
		liz pose la question : A kernal of popcorn contains water that expands when the kernal is heated, causing it to pop. The equations below give the "popping volume"y(in cubic centimeters per gram) of popcorn with moisture content x(as a percent of the popcorn's weight). hot air popping: y = -0.761x^2 + 21.4x-94.8 hot oil popping: y = -0.652x^2 + 17.7x -76.0 A) for hot air popping, what moisture content maximizes popping volume? What is the maximum volume? B) For hot oil popping, what mositure content maximizes popping volume? What is the maximum volume? C) the moisture content of popcorn tyipcally ranges from 8% to 18%. Graph the equations for hot air and hot oil popping on the interval 8 less then or equal to x and less then or equal to 18. D) Based on the graphs from part(c), what general statement can you make about the volume of popcorn produced from hot air popping verus hot oil popping for any moisture content in the interval8 less then or equal to x and less then or equal to 18. Penny Nom lui répond.
	Four triangles in a square		2007-10-15
		Kristina pose la question : A square with side lengths of 6 cm is divided into 3 right triangles and a larger isosceles triangle. If the three right triangles have equal area, find the exact area of the isosceles triangle. Stephen La Rocque lui répond.
	Inverses of Quadratic Functions		2007-10-11
		Elliot pose la question : I'm a special education tchr trying to demonstrate how to find the inverse (using algebra) of quadratic functions. Any help would be greatly appreciated. Steve La Rocque and Harley Weston lui répond.
	Problems solved using quadratic equations		2007-10-07
		Lisa pose la question : a. Two positive numbers differ by 5. Their product is 234. What are the two numbers? b. The sum of two numbers is 12. Their product is 30. What are the two numbers? c.Two numbers differ by 5. Their squares differ by 55. What are the two numbers? d. The sum of two numbers is 15. Their product is 56. By forming an equation, find the two numbers. Penny Nom lui répond.
	Factoring a quadratic		2007-09-04
		Arlene pose la question : Question from arlene, a student: x^+2x-24=0 Stephen la Rocque lui répond.
	Can you solve this by factoring? 10r^2 - 35r = 10		2007-08-12
		Aranxa pose la question : how do u solve this equation by factoring: 10r^2 - 35r = 10 Stephen La Rocque lui répond.
	The domain and range of a quadratic function		2007-07-17
		Linda pose la question : I have been trying to solve this problem but I'm unable to figure it out. How do I find the domain and range of y=-(x+1)^2-3? Please explain...thanks! Stephen La Rocque and Penny Nom lui répond.
	Values of k for which k(x^2+2x+3) - 4x - 2 is never negative		2007-06-29
		claire pose la question : Find the range of values of k for which k(x^2+2x+3) - 4x - 2 is never negative. Harley Weston lui répond.
	The roots of (x - k)(1-3x) + 1 = 0		2007-06-28
		Claire pose la question : Show that the roots of (x - k)(1-3x) + 1=0 are real and distinct for all real values of k. Hence, or otherwise, find the range of 9sin^2 r - 6sin r + 13 Harley Weston lui répond.
	15 = 19.2 t (time) - 4.9 t squared		2007-06-11
		Nicole pose la question : 15 = 19.2 t (time) - 4.9 t squared Penny Nom lui répond.
	Solving a quadratic equation using the Quadratic Formula		2007-06-05
		Stuart pose la question : Solve the following quadratic equation: 3xsquared-5x-4=0 Stephen La Rocque lui répond.
	Using FOIL for (2x - 6)^2		2007-05-18
		TONI pose la question : I am having a problem finding examples of how to solve (2x-6)^2. Stephen La Rocque lui répond.
	Interval of the domain		2007-05-13
		Gale pose la question : What does the term interval of the domain mean? Penny Nom and Stephen La Rocque lui répond.
	A sketch of a quadratic equation		2007-04-14
		Fee pose la question : A ball is thrown upward from the roof of a 25m building. The ball reaches a height of 45m above the ground after 2s and hits the ground 5s after being thrown. Use the fact that the realtion between the height of the projectile and time is quadratic to draw an accurate graph of the relation on graph paper. Penny Nom lui répond.
	A quadratic function		2007-04-12
		sveta pose la question : determine the quadratic function f(x)=ax^2+bx+c,such that f(x)+2x+8=f(x+1) , and f(1)=12 Stephen La Rocque lui répond.
	Intersection of a line and a circle		2007-04-12
		gaby pose la question : The sum of two numbers is 9. The sum of the squares of the two numbers is 41. Find the numbers. Steve La Rocque and Melanie Tyrer lui répond.
	A quadratic problem		2007-04-12
		Chin pose la question : The quadratic equation y = (x-p)^2 + q cuts the y axis at y = 10. The straight line y = -6 is a tangent to the curve. Find the values of p and q? Stephen La Rocque lui répond.
	Solving Quadratic-Liner Equations algebraically		2007-04-12
		Hector pose la question : Solving Quadratic-Linear Equations algebraically. y=x^2-4x+3 y=x-1 Stephen La Rocque lui répond.
	Kicking a field goal		2007-03-13
		san pose la question : A football player attempts a field goal by kicking the football. The ball follows the path modelled by the equation h= -4.9^2+10t+3, where h is the height of the ball above the ground in metres, and t is the time since the ball was kicked in seconds. *the ball must clear the uprights for the field goal to count. The uprights are approximately 5 m high. How long does the ball stay above 5 m in height? Penny Nom lui répond.
	Maximize revenue		2007-03-08
		San pose la question : A movie theatre sells tickets for $8.50 each. The manager is considering raising the prices but knows that for every 50 cents the price is raised, 20 fewer people go to the movies. The equation R= -40c^2+84c describes the relationship between the cost of the tickets, c dollars, and the amount of revenue, R dollars, that the theatre makes. What price should the theatre charge to maximize revenue? This question comes from my gr.11 corresponding study homework and I not yet solve it. Please help! Thank you, I will appreciate your help. Stephen La Rocque lui répond.
	Finding the x-intercept		2007-03-02
		Ash pose la question : Y = -1/100X^2 =27/10X +0 = 0 THE Y INTERCEPT IS 50 HOW DO I FIND THE X INTERCEPT Gabriel Potter lui répond.
	Fencing a field		2007-02-01
		Carol pose la question : "The area of a rectangular field is 1200m^2. Two parallel sides are fenced with aluminum at $20/m. The remaining two sides are fenced with steel at $10/m. The total cost of the fencing is $2200." What is the length of each side fenced with aluminum and steel? Stephen La Rocque lui répond.
	y = x^2 - 2		2007-01-08
		Mike pose la question : Graph the quadratic equation: y=Xsq-2 Penny Nom lui répond.
	The area of a triangle		2006-12-29
		Paula pose la question : The area of a triangle is 24cm². Its height is 2cm more than its base. Determine the base and the height. Penny Nom lui répond.
	A quuadratic equation		2006-12-22
		Harold pose la question : L=3w-4 A=96Square I used the quadratic equation to solve and my answer is still wrong I convert the square of 1168 to decimal. here is where i start (3w-4) x w=96 could you give me an example Stephen La Rocque lui répond.
	The roots of a quadratic equation		2006-11-16
		Lana pose la question : If p and q are the roots of 2X^2 +3X+7=0, compute pq^3+qp^3. thanks for your help. Penny Nom lui répond.
	-3x squared + 5x -2=0		2006-11-14
		Stacey pose la question : my son has a problem I am trying to figure out neg 3x squared + 5x -2=0 Stephen La Rocque lui répond.
	Is this unsolvable?		2006-09-19
		Al pose la question : Is this unsolvable??? 2xy + 3x^2 - 3y + y^3 = 4x + 3 where y=3. Penny Nom and Claude Tardif lui répond.
	How do i factor x^3 - 6x^2 + 8x		2006-09-10
		Lauren pose la question : how do i factor x3 - 6x2 + 8x Stephen La Rocque lui répond.
	Quadratics and quintics		2006-07-18
		Lynne pose la question : What is wrong with this statement? "The quintic is one step up from the dread quadratic equation." (Newsweek, Dec. 19, 2005) Stephen La Rocque lui répond.
	The perimeter of a regular octagon		2006-04-20
		Martin pose la question : I would like to make an octagon out of 2x4 lumber. I know that the lumber needs to be cut at 67.5 degree angles, but how do I determine the length of each piece if I want to make, say, a 2.5 ft diameter octagon? Stephen La Rocque lui répond.
	The quadratic formula		2006-03-03
		Miriam pose la question : Please show work and indicate "answer", using the quadratic formula - (x+2) (2x+3) = 6 penny Nom lui répond.
	6y^10 + 19y^5 + 14		2006-03-02
		Bahija pose la question : Factor 6y10 + 19y5 + 14 Penny Nom lui répond.
	Solve for x		2006-02-05
		Minti pose la question : how can you solve for x? f(x) = -1/4pi(x²) =10x -x²(4-pi)/8 Penny Nom lui répond.
	Quadratic Equations & Given Roots		2005-11-11
		Lindsey pose la question : I need to find the quadratic equation in the form: f(x)=a(x2 - (-b/a)x + (c/a)) The vertex is (1, -7), the roots are (4, ?) I need to find the other root but I don't know where to begin. My answer key says the other root is (-2). How is this possible? Penny Nom lui répond.
	How do you solve 3x^2 + x - 2 = 0		2005-09-15
		Lizzy pose la question : How do you solve 3x2 + x - 2 = 0 Penny Nom lui répond.
	A quadratic		2005-09-06
		Ginger pose la question : I took a pre alg test today. There was a question on it that I am not sure and is bothering me. Can you tell me the answer? x square + 13 + 14 Factor this Penny Nom lui répond.
	x = (y^2 - b^2)/2b		2005-09-04
		Bob pose la question : while looking at x=(y2-b2)/2b on a table I was preparing for a graph, I saw that there is a point where x and y get closer to each other's value. By trial and error I tried to find the point where x=y. I saw a number which looked familiar and I realized it was the square root of 2. and so, if y=b(1+square root of 2) then x=b(1+square root of 2) also, or as x=y. My question is: How can this result x=y when y=b(1+square root of 2) be algebraically derived from the equation x=(y2-b2)/2b without pre knowing it is so? Penny Nom lui répond.
	Discriminant		2005-06-20
		A student pose la question : If a quadratic has real root, its discriminant b2-4ac>=0 Is there any similar condition or method by which you can find whether roots of a cubic equation are real or not? Chris Fisher lui répond.
	16x^2+20x-12x-15		2005-05-03
		Tanya pose la question : how they got (4x+5)(4x-5) from 16x2+20x-12x-15=4x(4x+5)-3(4x+5)=(4x+5)(4x-5) Penny Nom lui répond.
	A quadratic equation		2005-04-27
		Chris pose la question : Solve using the quadratic formula 9x² + 9x - 5 = 0 I don't get the same answer as in the text book which is -3+/- √29/36 Hope you can help.... Penny Nom lui répond.
	A quadratic equation		2005-02-09
		Jess pose la question : 6x+8=-x2 Claude Tardif lui répond.
	Solve for x		2005-02-02
		Christie pose la question : Solve for x .387 = (.40 - .265x)/(sqrt(1-x2)) Penny Nom lui répond.
	cos 2x = sin x		2005-01-22
		Kris pose la question : solve the equation cos 2x = sin x for 0<= x < 360 Penny Nom lui répond.
	Quadratics		2005-01-05
		Usman pose la question : Hi, in my Grade 11 Functions math class we have been assigned the task of finding jobs and careers related to quadratics, I have done many searches but have been unsuccessful, then I saw your website and e-mailed. I also have to use an example of a math problem that the job uses, then solve it, this will all compile on bristol board for a presentation. I would greatly appreciate it if you could send me some links and references of sources that refer to this subject. Harley Weston lui répond.
	An elliptical table		2005-01-03
		Roger pose la question : Want to make an elliptical table, say the long (major) axis is 4 feet, and the short (minor) axis is 3 feet. I can construct this figure, but I'm trying to figure out what the exact dimension of a rectangle within this ellipse will be if I make the table a drop leaf type where the drop dimensions are equal for each end of both the long and short axes. Intuitively, it looks like there is one and only one solution. Penny Nom lui répond.
	Solving quadratics		2004-11-20
		Aaron pose la question : Can you solve the following equation (quote the value of x,y and t to 3 sig figs) ((i have changed figures so that i can work through my own example)) x2 + x - 6 = 0 5y2 +19y = 3 10cos2 t + 3cos t = 4 Penny Nom lui répond.
	Factoring		2004-11-09
		Rise pose la question : Q1: a2 + 5a + 6 I didn't really understand the purpose of the teacher's steps, but was able to get my daughter to find factors of 6 and then add them together to find which resulted in the sum of 5. Unfortunately, this problem-solving technique did not help us to solve for the more complex problems as follows: Q2: 9a3 - 24a2 + 12a Penny Nom lui répond.
	Factoring		2004-07-28
		Nicole pose la question : Can 4x2 + 19x + 12 be factored? i have tried but i cannot figure it out. Is there a way to find out if it cannot be factored before i try to work out the problem? Penny Nom lui répond.
	x^2 = x + 2		2004-07-26
		A parent pose la question : x2 = x+2 My daughter came home with this equation today and although I know the answer is x=2, i have no way of proving it by showing any working out. Penny Nom lui répond.
	Solving some quadratic equations		2004-07-15
		A student pose la question : Could you please solve the following for x x2+6=5x x2+16=8x 2x+21=3x2 Penny Nom lui répond.
	A tangent to a quadratic		2004-06-04
		Jem pose la question : I have a question on the tangent to a quadratic curve. Say I have a curve y = ax2 + bx + c. The gradient, using the derivative of y, at any point x on the curve is: 2ax + b right? Then, for the tangent that cuts the curve at a point x, the equation of the tangent can be: y1 = (2ax + b)x1 + d. My question is, how is the point d of this tangent determined? It is the point on the y-axis where the tangent cuts isn't it? Is there a formula for it? Penny Nom lui répond.
	x^2/3 - 7 x^1/3 + 12 = 0		2004-04-05
		Jackie pose la question : I am having trouble solving this question for x: 1.) x^2/3 - 7 x^1/3 + 12 = 0 Penny Nom lui répond.
	A quadratic word problem		2004-02-04
		Carl pose la question : A walkway of uniform has 72m2 and surrounds a swimming pool that is 8m wide and 10m long. Find the width of the walkway. Penny Nom lui répond.
	|x^2 - 12x| = 8		2004-01-24
		Sherre pose la question : |x2 - 12x| = 8 Penny Nom lui répond.
	The product of the page numbers		2003-11-07
		Morgan and Mom pose la question : You open a book and the product of the page numbers is 12,656. What are your page numbers? Penny Nom lui répond.
	The quadratic formula		2003-08-31
		Alex pose la question : I am using Houghton Mifflin's Precalculus with Limits book, 2nd edition. However, the first chapter encompasses Algebra review, and I am stuck on a problem. All that's required is to solve the following and verify using a calculator: 3y2+6y+2=0 I have solved the problem using the quadratic formula, but from what I remember, the quadratic formula is used in the case of equations following the AX2+BX+C=0 pattern. As the problem I am attempting uses a y-variable, can I still use the quadratic formula? Since I am not sure what route to take in solving this problem, I am hoping you can assist me. Harley Weston lui répond.
	x-6square root of x +8=0		2003-05-10
		Elizabeth pose la question : x-6square root of x +8=0 Penny Nom lui répond.
	Two intersecting graphs		2003-04-23
		Patty pose la question : a) graph the equation x2 - y - 4 = 0 x2 + y2 = 9 on the same set of coordinate axes. I did not have a problem with this. The problem is part (b) of the question ask: Find all solutions of the system in part (a) algebraically. Express answers in decimal form, accurate to two decimal places. Penny Nom lui répond.
	Quadratic word problems		2003-03-30
		A student pose la question : Question: i think i know the basics of how to solve direct quadratic equations,but how do i go about solving those word problems? i have tried them times and again, but nothing seems to work at all!they are driving me crazy! pls help!:):):):):) bob & nick earned $1260 each. bob's hourly wage is $3 more than nick's hourly wage. he worked 2h less compared to nick. find the number of hours nick worked. there are 2 tanks in henry's house. in tank A, the fish are all goldfish. they are bought at a total cost of $259. in tank B, there are only guppies. the guppies were bought at a cost of $1.20 each. a day later,henry bought 3 more goldfish and put them into tank A. the number of guppies in tank B is now twice the number of goldfish in tank A.the total cost of all the fish that henry has presently,i.e. goldfish & guppies, is $355.30. given that the cost of each goldfish is the same, a)find the initial number of goldfish in tank A b)find the total cost of all the guppies. a particular disc can be made to rotate at 2 different speeds. if it is made to rotate slower by 135 revolutions per hour, it wld require an additional 2.7 hour to make 315 revolutions. find the higher speed at which it can operate. Penny Nom lui répond.
	Why quadratic?		2003-01-21
		Dan pose la question : Why are equations of the form aX2 + bX + c =0 call quadratic? The quad indicates 4 but the power is 2. Penny Nom lui répond.
	The intersection of conics		2002-12-19
		Glenda pose la question : We are studying systems of equations where two conic sections are the two equations that we are solving simultaneously. We were studying the number of solutions that are possible if you have an ellipse and a parabola. We all agree that there can be none, one, two, three or four solutions. The question that the students had for me was whether or not a portion of an ellipse and a parabola can overlap and thereby allow an infinite number of solutions. What should I tell them? Chris Fisher and Harley Weston lui répond.
	Quadratic equations		2002-12-10
		Katie pose la question : just bugging the hell outta me and I cannot figure it out for the life of me. 1)x-2x-1 =0 Find both roots. You must simplify both of your roots. This equation requires the use of the Quadratic Formula. I have tried everything for this and I am still either getting the wrong answers, and end up getting really frustrated. If you could find the answers and tell me how you did it I would greatly appreciate it! Then the second problem is 2) The square of a certain negative number is equal to 70 decreased by 3 times the number. Find the answer! On this one I set it up but still came out with the wrong answer. So if you could help me on this one I would greatly appreciate it! Penny Nom lui répond.
	A complex quadratic		2002-10-06
		Michael pose la question : I would like to know, how to solve this Complex number: quadratic equation. ix 2 + x -i = 0 Harley Weston lui répond.
	The quadratic formula		2002-09-11
		Kathleen pose la question : im having a problem trying to understand quadratic formulas can u please help me i have problems like 3x2 - 4x - 11 = 0 how do i work out that problem? i have the formula written down but it doesnt seem to register for me. Penny Nom lui répond.
	Factor 12x^2 - 20x - 8		2002-04-30
		Crystal pose la question : Factor Completely: 12x2 - 20x - 8 Penny Nom lui répond.
	A right-angled triangle		2001-12-13
		Pamela, Jeff, Kayleigh and Jacob pose la question : A right-angled triangle has one side that is 8 cm shorter that the hypotenuse. The other side is 1 cm shorter than the hypotenuse. Find the length of the sides. Penny nom lui répond.
	Solving x^2-3x+5=0		2001-11-30
		Katy pose la question : How do you find the solution to x2-3x+5=0? Penny Nom lui répond.
	Why quadratic for a second degree equation?		2001-10-20
		Jana pose la question : Why do we use the word quadratic to describe second degree equations? Penny Nom lui répond.
	Quadratics		2001-05-16
		John pose la question : I am in the final stages of a math project and I need to interview an expert for the last part. Please try to answer at least a few of these questions. How do you use quadratic equations in your everyday life? Do you find being a math expert very helpful in life? Is the quadratic equation useful to you? Why did you decide to become a math expert? What do you think is the most important function of the quadratic equation? Harley Weston lui répond.
	25 y^2 + 20 y z - 4 z^2		2001-05-15
		Kimmy pose la question : i don't know how to factor the trinomial 25y2 + 20yz - 4z2. I can get it, but i get messed up on getting the minus 4 at the end. all i get is a plus 4. Can it even be factored. Penny Nom lui répond.
	A quadratic function		2001-05-10
		A parent pose la question : A quadratic function is given by f:x------ax2+b If the two points A(2, 2) and B (0, -8) are on the graph of the function, then find a and b. Penny Nom lui répond.
	Solving an equation		2001-03-27
		Jennifer pose la question : How would I solve this equation? 1.6 = 2x/(.1-x) - the equation in parenthesises is raised to the second power. I know you take the square root of both sides, but there is where I get lost. Leeanne Boehm lui répond.
	Quadratic equations		2001-03-11
		Philip pose la question : I am a student in the UK and i am in secondary school and i am doing my GCSE next year. here are my questions: solve the following equations correct to 2 decimal each time. [1] 2xsquared + 5x = 1 [2] 3xsquared(2x+1)=1 [3] xsquared + 7x + 2 = 2x + 4 [4] 5xsquared - 3x = xsquared + 4 Penny Nom lui répond.
	The solutions of a quadratic		2001-01-30
		A student pose la question : Show that the product of the solutions of ax2 + bx + c = 0 is c/a. For each equation under the given condition, (a) find k and (b) find the other solution. kx2 - 2x + k = 0; one solution is -3 Penny Nom lui répond.
	Completing the square		2001-01-12
		Jacky Lam pose la question : A friend told me that completing square not only can find the vertex but also the roots of a quadratic equation. Is it possible? How? Can you show me how to find the roots of the following equation using completing the square? 8x2 + 8x + 4 Penny Nom lui répond.
	A problem with a quadratic		2000-08-09
		David Xiao pose la question : Find the value of a such that 4x2 + 4(a-2)x - 8a2 + 14a + 31 = 0 has real roots whose sum of squares is minimum. Harley Weston lui répond.
	Finding a Quadratic Equation given the roots		2000-04-16
		A secondary student pose la question : How do I find the equation for the quadratic with roots at 2-i and its complex conjugate? Harley Weston lui répond.
	Quadratics		2000-01-27
		Lori pose la question : Hi my name is Lori. I'm a student, in the 11th grade.I have a problem in quadratic functions. I don't know how to get the numbers into the problem and then how to do the problem. here is one problem the rest are sort of similar to it... y=2x squared. If I were to find out how to get the (x,y) answers then I could graph it but as I said I can't find the numbers to go into the problem. Also in the equation g: x arrow to y = -x + 4..... how would you know weather it is or isn't a quadratic equation???? Penny Nom lui répond.
	Quadratic		2000-01-26
		Karen Johnson pose la question : What is the reasoning behind the title quadratic equation? Penny Nom lui répond.
	Complex Roots		2000-01-24
		Jess Rutherford pose la question : How do I find the value of k when 5x2 + k = 3x and has complex roots ? Penny Nom lui répond.
	Derive the quadratic equation		2000-01-01
		Thuy pose la question : My teacher asked us this question in which i can't understand when she asked to derive the quadratic equation. What does this mean? Penny Nom lui répond.
	Two conics		1999-12-07
		Quinn pose la question : I know the formula to find the axis of symmetry of a conic section (I'm not sure what shape - circle for the first one??) is (-D/2A,-E/2C) but I obviously don't get how to calculate it, because when I check the answer it's wrong, but I'm so close!! For the following equations my teacher suggested to "divide the x term coefficient, D, by the x squared term coefficient before...do the same for y." 2x2+2y2-8x+12y+16=0 . . . Penny Nom lui répond.
	Critical numbers		1999-11-17
		Sarah pose la question : My question is this: If f(x)=2x3+4x2-9x+8 and the derivative is f'(x)=6x2+8x-9, how do I find the critical points if f'(x) is not factorable?? Penny Nom lui répond.
	Two Quadratics		1999-10-08
		Jason On pose la question : Solve the following equations,expressing solutions in the form p + iq. sqr(x) + 2x - 1 = 0, sqr(x) + 2x - 3 = 0. Harley Weston lui répond.
	A ladder problem		1999-04-22
		Michael Blade pose la question : There is a cube box 3feet x 3feet x 3ft resting against a vertical wall on level ground. Resting against the outside corner of the box is a ladder 10 feet tall, this ladder is of course resting on the ground but also against the outside corner of the box and rests on the wall. The question- the ladder is divided into two unequal section bounded by the box to the ground and the box to the wall. what are those dimensions? Penny Nom lui répond.
	Quadratic equations		1999-03-31
		Ken Niebergall pose la question : #1 a2 - 10a = 2a - 36 #2 t(t - 5) = 5 (t - 5) #3. (x + 4)(x - 3) = 8 Thanks. Jack LeSage and Penny Nom lui répond.
	A word problem		1999-03-25
		Anna Gariss pose la question : A second number is 4 less than a first number. The product of the second number and 3 more than the first number is 18. Find the pair of numbers. Jack LeSage and Penny Nom lui répond.
	An airplane problem		1999-03-08
		B.M.R. pose la question : A plane left New York and headed East to its destination 3600 miles away across the Atlantic. On the way back its speed was boosted by a 50 mph tail wind and it arrived an hour early. What was its normal speed? Jack LeSage lui répond.
	Enlarging a Rink		1999-03-06
		Jennifer Rudd pose la question : I've been having difficulty with this one question involving area. The level of the question is Grade 11/12. Here it is! A rink is 40 m long by 20 m wide. There are plans to enlarge it by 700m2 by adding a strip at one end and a strip of the same width along one side. Find the width of the strip. (Let the width of the strip by x meters.) Jack LeSage lui répond.
	The Quadratic Formula		1999-01-22
		Eric Morgan pose la question : Hi my name is Eric Morgan and I m in 8th Grade honors math (middle) and I'd like to know how to prove the quadratic formula -b±sqrt of b(a)(c)over 2(a) Penny Nom lui répond.
	Complex numbers and the quadratic formula		1998-12-25
		Richard Peter pose la question : My age is 16, and my name is Richard. My question relates to the topic complex numbers & the quadratic formula. I would like to know how to solve quadratic equations in which the discriminant is less than 0 (i.e. we get two complex solutions to the quadratic) 3x2+2x+5 = 0 and how mathematicians like euler contributed to this field. If it would be possible I would also like to know how this type of quadratic equations can be graphed? Harley Weston lui répond.
	Solving Quadratics		1998-07-16
		Fred Goodrich pose la question : I need a step by step lesson on solving quadratic equations. Thank you, Penny Nom lui répond.
	Quadratic Graphs		1998-01-13
		Simon Batten pose la question : How does varying the values a,b and c affect the graph of y=ax2 + bx + c? Harley Weston lui répond.
	Find the Numbers.		1997-12-28
		Sandy C pose la question : The sum of the squares of two numbers is 53. Twice the greater, minus the lesser is 11. Find the numbers. Penny Nom lui répond.
	Polynomials		1997-10-07
		Sheryl and Jeff pose la question : I'm a math teacher in Jerusalem, Israel. I'm teaching about graphing polynomial functions in a pre-calc class. A student asked me what they're good for. I couldn't give her a good example. Do you have one. Thanks. Penny Nom lui répond.
	Why QUADratic?		1997-03-19
		Paula Miller pose la question : A student today asked me why a quadratic, with highest power of degree 2, was called a QUADratic. We're awaiting the answer with baited breath! :) Chris Fisher and Walter Whiteley lui répond.
	Deriving the Quadratic Formula		1997-02-04
		James pose la question : How do you derive the quadratic formula? I know what it is, but the textbook doesn't say how to derive it. Penny Nom lui répond.

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