Question

Simplify (a + b )(a^2 - ab + b^2)

Answer 1

a^3 + b^3

Explanation:

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Answer 2

a^3 + b^3

Explanation:

(a + b )(a^2 - ab + b^2)

Distribute

a*a^2 -a*ab+a*b^2 + b*a^2 -b*ab +b*b^2

Simplify

a^3 -a^2b +ab^2 +a^2b -ab^2+b^3

Combining like terms

a^3 +b^3