Question

1. factorize 8p^3 + 1/p^3

2. Expand the following

Answer 1

You have to be thorough with this identity (a^3+b^3)=(a+b) (a^2+b^2-ab)
(2p)^3 + (1/p)^3 = (2p+1/p) (4p^2 + (1/p)^2 - 2)