+0  
 
+5
504
3
avatar

find factor: x^2-2xy+y^2+3x-3y-4

Guest Dec 26, 2015

Best Answer 

 #1
avatar+92930 
+15

find factor: x^2-2xy+y^2+3x-3y-4

 

\(x^2-2xy+y^2+3x-3y-4\\ =(x^2-2xy+y^2)+(3x-3y)-4\\ =(x-y)^2+3(x-y)-4\\ \mbox{Let z=x-y}\\ =z^2+3z-4\\ =(z+4)(z-1)\\ =(x-y+4)(x-y-1) \)

Melody  Dec 26, 2015
 #1
avatar+92930 
+15
Best Answer

find factor: x^2-2xy+y^2+3x-3y-4

 

\(x^2-2xy+y^2+3x-3y-4\\ =(x^2-2xy+y^2)+(3x-3y)-4\\ =(x-y)^2+3(x-y)-4\\ \mbox{Let z=x-y}\\ =z^2+3z-4\\ =(z+4)(z-1)\\ =(x-y+4)(x-y-1) \)

Melody  Dec 26, 2015
 #2
avatar+87657 
0

Nice one, Melody.......I like how you did that.....!!!!

 

 

cool cool cool

CPhill  Dec 26, 2015
 #3
avatar+92930 
0

Thanks Chris,

It was a neat question.  :)

Melody  Dec 26, 2015

5 Online Users

avatar

New Privacy Policy

We use cookies to personalise content and advertisements and to analyse access to our website. Furthermore, our partners for online advertising receive information about your use of our website.
For more information: our cookie policy and privacy policy.