







une écriture plus simple des expressions 
20110113 

jessie pose la question :
trouver une écriture plus simple des expressions suivantes sachant que : x + y = 3 et x  y =2
A=x1+y+2 B=x1+y2
C=x+1+y+2 C=x+1+y2 Claude Tardif lui répond. 





Two expressions for the perimeter of a a rectangle 
20180513 

Slayde pose la question : A rectangular house has one side 4 metres longer than the other. Create two different expressions for its perimeter. The expressions should be given in factorised and expanded form. Penny Nom lui répond. 





3 over "x" plus 5 
20150223 

Kenny pose la question : 3 over "x" plus 5. I don't know this is either a polynomial and if so how would you define it. Harley Weston lui répond. 





Four less than three times a number is 14 
20100416 

David pose la question : My daughter has two questions that we could use some help with.
First ?
Four less than three times a number is 14
Secound?
The quotient of 15 and w Penny Nom lui répond. 





The whole number that precedes a number w+3 
20090117 

Morgan pose la question : write a variable expression for
"The whole number that precedes a number w+3" Penny Nom lui répond. 





Algebraic fractions 
20081006 

Kayla pose la question : (x^29)/x times (x^34x)/(x^2+5x+6) Harley Weston lui répond. 





The square root of a fraction 
20080824 

Lauren pose la question : How do you solve square roots of fractions? Does the format change if it is either a proper or an improper fraction?
Ex. the square root of 1/4 or the square roots of 80/25 Penny Nom lui répond. 





1/35/6=1/x, solve for x 
20080501 

Lavada pose la question : 1/35/6=1/x How do I solve this problem. Penny Nom lui répond. 





Simplify 5x^5/8 / 15x^2/12 
20080418 

Kyler pose la question : 5x^5/8 / 15x^2/12 Divide the rational expressions. Simplify the results. Penny Nom lui répond. 





How would I graph: x  2 divided by x^2  4? 
20080319 

Sean pose la question : How would I graph: x  2 divided by x^2  4 using a method in extreme values of
functions or completing the square
x  2/ x^24 Stephen La Rocque lui répond. 





Simplifying square roots 
20071219 

Ciara pose la question : How would you calculate 2 to the square root of 8 plus 4 to the square root of 2 minus 5 to the square root of 2? Stephen La Rocque lui répond. 





Subtracting rational expressions 
20071009 

Pamela pose la question : Subtract:
6p – w __ 4c + p
w – 4 w – 4
Stephen La Rocque lui répond. 





Variable expressions  part 2 
20070904 

lisa pose la question : how do I write a variable expression for word phrase example x less than =
2 or 2 less than p
4 fewer than job please help Penny Nom lui répond. 





Variable expressions 
20070904 

Eric pose la question : how so i write a numerical or variable expression for each quantity.
example two dozen eggs or d dozen eggs
number of quarts ub a 3 gallons Penny Nom lui répond. 





Adding and Subtracting Rational Expressions 
20070321 

Pricilla pose la question : Pricilla
I do not know how to do this problem. Don't know where to start.
[(5)/(2x8)]+[(3x^2+15)/(x^34x^2+5x20)] Stephen La Rocque lui répond. 





Simplifying exprressions 
20061106 

Jessica pose la question : 21(a+2b)+14a9b Stephen La Rocque lui répond. 





How do you write a variable expression 
20061011 

Josh pose la question : How do you write a variable expression for the following:
The amount of money Waldo has if he has $10 more than Joe and
How much weight Kirk can lift if he lifts 30 lbs more than his brother. Stephen La Rocque lui répond. 





Rational expressions 
20051115 

Zach pose la question : I can solve easy problems such as (x/2)+3=2+(3x/4). That is easy because the Lowest Common Denominator is 4. But what really gets me stuck is a problem like this one.
(6/x2) = ( 21/(x2)(x+2) )+ 1. Penny Nom lui répond. 





Coefficients, constants and like terms 
20051005 

Elizabeth pose la question : In the equation 8y+6ab+73ab what are the coefficients; the like terms and constants? Penny lui répond. 





A rational arithmetic expression 
20050914 

Vijay pose la question : How to simplify following Grade 9 math problem:
(4/9) X (21/32) X (3/14) Penny Nom lui répond. 





Rational expressions 
20040924 

A student pose la question : In general, I understand rational expressions except when it comes to solving problems such as:
x+y/2xy  2x/y2x or m4/3m4 + 3m+2/43m
I am confounded by the issue of having to find a common denominator. For example, if I tried to solve these problems by multiplying both denominators they would still be uncommon. Claude Tardif lui répond. 





Rational expressions 
20040406 

Shivani pose la question : I am in 11th grade Honors Algebra II. We are currently learning about adding and subtracting rational expressions. I looked at the other questions that were similar to that of mine, but they weren't quite answering my question. I have been working on many problems to practice and see if I can come up with the correct answer, but I can't, I got like 2 out of every 7 right on my school homework. I get the easy ones, where when you have to find the LCD, it's just the other denominator. But, on others you have to really think about it. Those are hard. Here are some of the problems that I cannot get at all: (x2  3x + 1)/(x2  4)  (x2 + 2x +4)/(2  x)  (x  4) /(x  2)
The correct answer is:
(x3 + 4x2 + 7x + 17)/(x2  4) Penny Nom lui répond. 





Subtracting rational expressions 
20030510 

Simone pose la question : hi, i'm totally lost. i understand that you need to find a lowest common denominator to subtract two fractions (rational expressions) with different denominators. but what if the denominators are "x1" and "x". is x the common denominator? if so what happens to the "1"? do you know of any live online help i can get with the following: 3/(x1)  (12x)/x i've looked through my notes and have no examples that quite match that i can follow to get through it. please help! Penny Nom lui répond. 





Excluded values 
20030222 

Josh pose la question : Why do you think it is necessary to include the "excluded values" when you write your answers to rational expressions? Penny Nom lui répond. 





Rational expressions 
20030122 

A student pose la question :
// = the main fraction line 1.) a+1/a1 + a1/a+1 // a+1/a1  a1/a+1 2.) 2/a(squared)3a+2 + 2/a(squared)a2 // 2/a(squared)1 + 2/ a(squared)+4a+3 Penny Nom lui répond. 





Simplifying Variable Expressions 
20021028 

Erika pose la question : i would like to ask you a mathematical question on Simplifying Variable Expressions. The question is 2(n4)+3. Penny Nom lui répond. 





Rational expressions 
20021003 

Ashley pose la question : 1/x(squared) + 5/xy Penny Nom lui répond. 





Variable expressions 
20020815 

Brittany pose la question : I am just learning variable expressions. My homework is to write a variable expression for each word phrase;
example :
the number of minutes in s seconds the cost of x cartons of juice at $.75 each And etc.
I don't understand it Penny Nom lui répond. 





Simplifying algebraic expressions 
20010512 

A student pose la question : How do you simplify algebra expressions? Penny Nom lui répond. 





Adding and subtracting rational expressions 
20010503 

Donna pose la question : Adding and subtracting Rational expressions. I am in grade 10 and I am a student here is an example of the questions: 1/(x+1)  1/(x1) = ? Penny Nom lui répond. 





Equivalent Expressions 
19970226 

Karyn Jones pose la question : Josie says that s=n/(n+1) and s/(1s)=n are two ways to write the same formula. Describe whether or not you agree with Joise. Explain how you made your decision. Walter Whiteley and Penny Nom lui répond. 

