Question

Гань)
$(a + b) {3}^{}$
​

Answer 1

${(x + y)}^{3} = {x}^{3} + {y}^{3} + 3xy(x + y)$

Answer 2

Answer:

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