







Can one equation with two variables be solved algebraically? 
20190830 

Don pose la question : Can one equation with two variables be solved algebraically? Penny Nom lui répond. 





How many solutions does 3 (x + 4) = 3 x + 4 have? 
20181201 

Milan pose la question : how many solutions does 3 (x + 4) = 3 x + 4 have? Penny Nom lui répond. 





Extraneous solutions 
20150307 

Emily pose la question : I have a question about Extraneous Solutions, Because I was recently researching to figure out
on how to determine that a solution is extraneous and many of the answers talked about how if a answer is negative
that it should always be extraneous but now I found out that positive solutions can also be considered as extraneous solutions
so that is why I am really confused Extraneous Solution's.
I would really appreciate it if you could clearly explain to me how to determine an extraneous solution from a normal solution.
Thanks,
Emily Chris Fisher lui répond. 





Extraneous solutions 
20131022 

tom pose la question : i need an equation where x=2 is the correct answer and x=3 is an extraneous solution. can you provide me with such an equation?? Harley Weston lui répond. 





Extraneous solutions 
20130218 

Eileen pose la question : (5x+4)^1/23x=0 Penny Nom lui répond. 





Extraneous solutions 
20100522 

Joe pose la question :
Question from Joe, a parent:
w+3 2w
   = 1
w21 w1
W2 is = w squared
4
The answer is w= 
3
but have no idea how this was solved. any help is appreciated. Thanks. Penny Nom lui répond. 





Redwood Park and Glendale Park 
20100305 

Shaun pose la question : Question from Shaun, a student:
Redwood and Glendale Parks are each surrounded by 100 yards of
fencing. The are of Redwood Park is 25 square yards more than the area
of Glendale Park. If both parks are rectangles, what is the measurement
of each rectangle? Harley Weston lui répond. 





Extraneous solutions 
20090920 

iyana pose la question : what is an extraneous solution? what must you do to determine whether a extraneous solution? Stephen La Rocque and Harley Weston lui répond. 





Extraneous solutions 
20090602 

Ayana pose la question : solve and check for extraneous solutions.
3x+6/ x²4 = x+1/ x2
x can not = {2,2} Penny Nom lui répond. 





An infinite number of solutions 
20090324 

Sean pose la question : this is a linear equations problem;
first:
3535.5 + Fbd (.866) + Fbc (.5)  Fab (.5) = 0
and
3535.5  Fab (.866)  Fbc (.5)  Fbd (.5) = 0 Harley Weston lui répond. 





A quadratic 
20081027 

Giselle pose la question : 3x squared minus 2x equals 5 Penny Nom lui répond. 





Extraneous solutions 
20080925 

crystal pose la question : /6x+7/=5x+2 Penny Nom lui répond. 





algebra 
20080731 

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. 





Number of real solutions 
20071005 

Sujith pose la question : The no of real solutions of the equations 1+x+x^2+x^3 = x^4+x^5 is ? Harley Weston lui répond. 





Two equations in two unknowns 
20070922 

Mary pose la question : Having problems doing this problem, looking for a solution with the work. I would like to see how you got your answer, to see what I was doing wrong.
solve using the substitution method, is there "no solution" or "infinitely many solutions"
4x+y=4
2x+8y=0 Stephen La Rocque and Leeanne Boehm lui répond. 





What feature on a graph shows the solution? 
20070819 

San pose la question : To solve the equation 2sinx+square root 3=0, what feature of the graph,
in the form y=asinx+b would show the solution? Draw a graph to show
the solution. thanks. Stephen La Rocque lui répond. 





What happens when you have zero's on both sides? 
20070605 

Lily pose la question : On the substitution method what happens when you have zero's on both
sides of the equation? Is that considered no solution or infinitely many? Stephen La Rocque and Penny Nom lui répond. 





Extraneous solutions 
20060101 

Liz pose la question :
Question: solve and check for extraneous solution
3(w + 1)^{1/2} = 6
Penny Nom lui répond. 





Extraneous solutions 
20050204 

Heather pose la question : My teacher wants to know why there are extraneous solutions in logarithms? Penny Nom lui répond. 





Extraneous solutions 
20040728 

Nicole pose la question : When I have a problem like (2x + 3)/5 = (x + 1)/6 and the question asks to check for extraneous solutions, how do you solve that? Penny Nom lui répond. 





Extraneous solutions 
20030124 

Paul pose la question :
What is an extraneous solution and in what cases do you get one? How do you know it is extraneous? Penny Nom lui répond. 





Mixing solutions 
20020913 

Margaret pose la question : In a chemistry laboratory the concentration of one solution is 10% hydrocholoric acid (HCl) and that of a second soulution is 60% HCl. How many mL of each should be mixed to obtain 50 mL of a 30% HCl solution?? Penny Nom lui répond. 





A solution to an equation 
20020828 

A student pose la question : How do you determine whether a pair of numbers is a solution for an equation? If you could identify the specifics steps I need to take to determine whether it is a solution or not would be appreciated! Thanks i.e. x4=0 Pairs of numbers as possible solutions (4,7) (3,4) (0,4). Penny Nom lui répond. 





The solutions of a quadratic 
20010130 

A student pose la question :
 Show that the product of the solutions of ax^{2} + bx + c = 0 is c/a.
 For each equation under the given condition, (a) find k and
(b) find the other solution. kx^{2}  2x + k = 0; one solution is 3 Penny Nom lui répond. 





Integral solutions 
20001120 

David pose la question : determine all pairs of integers (x,y) which satisfy the equation 6x^{2}  3xy  13x + 5y = 11 I got y= (6x^{2}13x+11)/(3x5) and i don't konw how to continue Claude Tardif lui répond. 

