SOLUTION: factor x^4-y^4

Question 233278: factor x^4-y^4
Answer by CubeyThePenguin(3113) (Show Source): You can put this solution on YOUR website!
Use difference of squares.

x^4 - y^4
= (x^2 + y^2)(x^2 - y^2)
= (x^2 + y^2)(x + y)(x - y)
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