Question

$Expand:(a+b{)}^3$.

Answer 1

The formula for ${(a+b)}^3$ is given below

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

In short it can also be expressed as

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