Factoring

ERIK VARGAS

New member
Joined
Feb 8, 2006
Messages
6
I would appreciate any of your help in this problem. thanks

The problem is y^2-4xy+4x^2 and it says to factor

This is what I have so far y+2x
y+2x=2xy+4x^2
y^2-2xy 0
So y^2-4xy+4x^2 and I got (y-2x)(y+2x)



Thanks for your help :D
 

Gene

Senior Member
Joined
Oct 8, 2003
Messages
1,904
Your notation needs work. There is no = in the original so you cannot say y+2x=2xy+4x^2.

You seem to be saying y+2x is a factor but the answer must be of the form
(y+ax)(y+bx) where a & b must have the same sign (so that a*b = +4 is positive) and a+b = -4 so the sign must be minus.
 

ERIK VARGAS

New member
Joined
Feb 8, 2006
Messages
6
Thank U :D
 
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