Question

Factorise: a-b-a² + b2​

Answer 1

CRM

PLEASE CHECK YR ANSWER CAREFULLY

HOPE IT HELPS TO U

PLEASE MARK ME AS BRAINLIST

Answer 2

Answer:

We observe

a−b−a

2

+b

2

=(a−b)−(a

2

−b

2

)=(a−b)−(a−b)(a+b)=(a−b)(1−a−b)

Here we used grouping and the formula for difference of two squares.