Question

factorise a-b-a²+b²​

Answer 1

Answer:

(a- b)[ 1 -(a - b )]

Step-by-step explanation:

Answer 2

Step-by-step explanation:

a - b - a2 + b2

= (a-b) - (a2 - b2)

= (a - b) - (a + b)(a - b)

= (a - b) {1 - (a + b)}

= (a - b) (1 - a - b)

I hope that will be help you