Question

Factorize :
2a² + ab - b²

Answer 1

Answer:

(2a-b)(a+b)

Step-by-step explanation:

Answer 2

Answer:

$(a +b )(2a - b)$

Step-by-step explanation:

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