Question

1) a²+ b(2)

2) a(2) -b(2)​

Answer 1

Step-by-step explanation:

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