SOLUTION: factor completely. x squared + 2xy + 2x + y squared + 2y

SOLUTION: factor completely. x squared + 2xy + 2x + y squared + 2y - 8

Question 369376: factor completely.
x squared + 2xy + 2x + y squared + 2y - 8
Answer by mananth(16946) (Show Source): You can put this solution on YOUR website!
x squared + 2xy + 2x + y squared + 2y - 8
...
x squared + 2xy + y squared + 2x+2y - 8
..
(x+y)^2+2(x+y)-8
let (x+y)=z
z^2+2z-8
z^2+4z-2z-8
z(z+4)-2(z+4)
(z-2)(z+4)
resubstitute the value of z
(x+y-2)(x+y+4)
...
m.ananth@hotmail.ca
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