Question

a plus b the whole cube

Answer 1

${a}^{3} + {b}^{3} + 3a b(a + b)$
is the answer for the question

Answer 2

hi Sandhya

Here is your answer..

$(a + b) ^{3} = a {}^{3} + {b}^{3} + 3 {a}^{2} b + 3a {b}^{2}$

hope it helps
#jerri