Question

Factorise a^3 -b^3+a-b​

Answer 1

Step-by-step explanation:

3 (1-4(a-b)^2)

= 3[1^2 - {2(a-b)}^2]

= 3[{1+2(a-b)}{1-2(a-b)]

= 3(1+2a-2b)(1-2a+2b)

Answer 2

Step-by-step explanation:

here is your answer buddy