Question

Factorise : a – b – a2 + b2 (A) (a-b) [1-(a+b)] (B) (a+b) [1-(a-b)] (C) (a-b) [1-(a-b)] (D) none of these​

Answer 1

given polynomial is

a-b

2

+b

2

=(a-b)a

Answer 2

Answer:

c

Step-by-step explanation:

(a-b)- (a^2-b^2)

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

taking a-b as common

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