CAIE P1 2004 June — Question 4

Exam BoardCAIE
ModuleP1 (Pure Mathematics 1)
Year2004
SessionJune
TopicBinomial Theorem (positive integer n)
TypeBinomial times linear coefficient

4 Find the coefficient of \(x ^ { 3 }\) in the expansion of
  1. \(( 1 + 2 x ) ^ { 6 }\),
  2. \(( 1 - 3 x ) ( 1 + 2 x ) ^ { 6 }\).