Question

a^3 + b^3 equals

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Answer 1

Answer:

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Step-by-step explanation:

Weknow(a−b)3=a3−b3−3ab(a−b)

⟹a3−b3=(a−b)3+3ab(a−b)

⟹a3−b3=(a−b)((a−b)2+3ab))

⟹a3−b3=(a−b)(a2+b2−2ab+3ab)

⟹a3−b3=(a−b)(a2+b2+ab)

Similarly,a3+b3=(a+b)(a2+b2−ab)