Question

Factorise the given expression:
a-b-a^2+b^2

Answer 1

Answer:

hope it's helpful to you....

Step-by-step explanation:

(a-b)- (a²-b²)

(a-b)-(a+b)(a-b) {a²-b²=( a+ b)(a-b)}

(a-b) (1-(a+b)) [take (a-b ) common]

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

Answer 2

Answer:

a - b - a2 + b2

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

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

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