This post is about binomial expansion of two terms expression. In this post questions are related with expansion of two terms. Find particular term and find coefficient of particular terms. The Binomial Theorem is a quick way of expanding a binomial expression that has been raised to some higher power. This topic in AS-level , A-level , IBDP Math HL and SL.
To find the coefficient of term we use pascal triangle
binomial theorem-2
https://www.purplemath.com/modules/binomial.htm
p p p p p