OCR C4 — Question 2

Exam BoardOCR
ModuleC4 (Core Mathematics 4)
TopicGeneralised Binomial Theorem
TypeExpand and state validity
2. (i) Find the binomial expansion of \(( 2 - 3 x ) ^ { - 3 }\) in ascending powers of \(x\) up to and including the term in \(x ^ { 3 }\), simplifying each coefficient.
(ii) State the set of values of \(x\) for which your expansion is valid.
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