Answers

2015-12-29T19:06:39+05:30
(a+b)^3=(a+b)^2 × (a+b)
=(a^2+2ab+b^2)×(a+b)
=a^3+2a^2b+ab^2+a^2b+2ab^2+b^3
=a^3+3a^2b+3ab^2+b^3
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