Question

factorise a-b-a²+b²?​

Answer 1

Answer:(a-b)[1-(a+b)]

Step-by-step explanation:see the given attachment

Answer 2

Answer:

Answer

Given polynomial is

a−b−a

2

+b

2

=(a−b)−(a

2

−b

2

)

=(a−b)−(a−b)(a+b)

=(a−b)[1−(a+b)]