Question

Factorise the following a^3-b^3-a+b

Answer 1

Answer:

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

Explanation:

by regrouping the factors,we can find that we get

a^3-a-b^3+b

a×(1^3-1)-b×(1^3-1)

(a-b)×(1^3-1)