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Factor x^4+xy^3+x^3+y^3 out completely. Hint: first factor out a monomial.

Factor x^4+xy^3+x^3+y^3 out completely. Hint: first factor out a monomial.-example-1

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The answer for this would be: (x + y) (x^2 -xy + y^2) (x + 1)
Hoped this helped! :)
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