Edexcel C2 — Question 1

Exam BoardEdexcel
ModuleC2 (Core Mathematics 2)
TopicBinomial Theorem (positive integer n)
TypeBinomial times linear coefficient
  1. Find the coefficient of \(x ^ { 2 }\) in the expansion of
$$( 1 + x ) ( 1 - x ) ^ { 6 }$$
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