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Simplify--(a+b)³+(a-b)³+6a(a²-b²)

Answers (1)

(a+b)³+(a-b)³+6a(a²-b²) = a3+b3+3ab(a+b)+a3-b3-3ab(a-b)+6a(a+b)(a-b)
=2a3+3a2b+3ab2-3a2b+3ab2+6a(a+b)(a-b)
=2a3+6ab2+6a(a+b)(a-b)
=2a3+6a(b2+a2-b2)
=2a3+6a3
=8a3

Posted by

Ravindra Pindel

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