Question

Prove that LHS =RHS (a+b)³=a³+b³+3a²b+3ab²

Answer 1

hi friend,

(a+b)³=(a+b)(a+b)(a+b)

=(a²+2ab+b²)(a+b)

=a³+2a²b+ab²+a²b+2ab²+b³

=a³+b³+3a²b+3ab²

hence proved

I hope this will help u :)