In the expansion of (2 + ax) 7 , where a is a constant, the coefficient of

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In the expansion of (2 + ax)⁷, where a is a constant, the coefficient of x is −2240.
Find the coefficient of x².

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Cambridge International AS And A Level Mathematics Pure Mathematics 1 Coursebook

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Authors: Sue Pemberton, Julian Gilbey

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Question Posted: Mar 10, 2023 06:35 AM

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In the expansion of (2 + ax) 7 , where a is a constant, the coefficient of

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use the binomial expansion formula to expand 2 ax7 2 ax7 C7027 C7126...View the full answer

Cambridge International AS And A Level Mathematics Pure Mathematics 1 Coursebook

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