Question

a³-b³, a-b. divide the number

Answer 1

a^3-b^3 = (a-b) (a^2+b^2+ab)
when it decided by a-b we get
(a-b)(a^2+b^2+ab)/(a-b) = (a^2+b^2+ab)
hence the answer is (a^2+b^2+ab)