Question

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

Answer 1

Cube of a sum =(a+b)³=a³+3a²b+3ab²+b³

@skb

Answer 2

${(a + b)}^{3} = {a}^{3} + {b}^{3} + 3 {a}^{2} b + 3a {b}^{2} \\ \\ \: \: \: \: \: \: \: or \\ {(a + b)}^{3} = {a}^{3} + {b}^{3} + 3ab(a + b)$