Question

a-b-a^2+b^2
answer in method ​

Answer 1

Answer:

$a - b - {a}^{2} + {b}^{2} \\ \\ (a - b) - ( {a}^{2} - {b}^{2} ) \\ \\ (a - b) - (a - b)(a + b) \\ \\ (a - b)(1 - a - b)$

Answer 2

Answer:

The answer is in the picture above

Hope it helps you