Expand each of the following using suitable identities(X 2y 4z)^2(2a-3

This question was asked in Ex 2.5,4

Expand each of the following using suitable identities
(X 2y 4z)^2
(2a-3b)^3
(-2a 5b-3c)^2
(A/4-b/2 1
(P 1)^3
(X-2/3 y)^3