SOLUTION: Factor x^4 + xy^3 + x^3 + y^3 completely. Show Work please.

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Question 932142: Factor x^4 + xy^3 + x^3 + y^3 completely. Show Work please.
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
x^4 + xy^3 + x^3 + y^3
x^3(x+1) + y^3(x+1)
(x^3+y^3)(x+1)