Question

FACTORIES
(a) a-b-a²+b²
solution
1(a-b)-[(a+b) (a-b)]
(a-b) (1-a-b)​

Answer 1

Answer:

a-b-a^2+b^2 = (a-b) +(b^2-a^2)

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

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

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