Question

expand using Identity (a²+2b)²​

Answer 1

a⁴+2ab+4b²

identity

(a²+2b)² = a²+2ab+b²

Answer 2

Answer:

$using \: \: this \: \: identity \\ (x + y {)}^{2} = {x}^{2} + 2xy + {y}^{2} \\ ( {a}^{2} + 2b {)}^{2} =( {a}^{2} {)}^{2} + 2 \times {a}^{2} \times 2b + (2b {)}^{2} \\ = {a}^{4} + 4 {a}^{2} b + 4 {b}^{2}$

I hope it will help you