| Exam Board | OCR MEI |
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| Module | C4 (Core Mathematics 4) |
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| Year | 2009 |
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| Session | January |
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| Topic | Generalised Binomial Theorem |
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| Type | Expand and state validity |
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2 Show that \(( 1 + 2 x ) ^ { \frac { 1 } { 3 } } = 1 + \frac { 2 } { 3 } x - \frac { 4 } { 9 } x ^ { 2 } + \ldots\), and find the next term in the expansion.
State the set of values of \(x\) for which the expansion is valid.