simplyfy=(a+b)(a^2-ab+b^2)
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Answer:
a^3+b^3
Step-by-step explanation:
(a+b)(a^2-ab+b^2)
a(a^2-ab+b^2)+b(a^2-ab+b^2)
a^3-a^2b+ab^2+a^2b-ab^2+b^3
a^3+b^3
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