SOLUTION: factor completely x^2 (a+b) -y^2 (a+b)

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Question 458111: factor completely

x^2 (a+b) -y^2 (a+b)
Answer by richwmiller(17219) About Me  (Show Source):
You can put this solution on YOUR website!
(x^2-y^2)*(a+b)
but we are not finished because x^2-y^2 can be factored into (x+y)*(x-y)
so we have (a+b)*(x+y)*(x-y)