4.2 Expanding (a + bx)^n
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a.

Find the first 4 terms, in ascending powers of xxx, of the binomial expansion of (3−4x)7(3 - 4x)^7(3−4x)7 giving each term in simplest form.

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b.

This expansion is to be used to find an approximation for 2.9672.96^72.967. State the value of xxx that should be used. (There is no need to carry out this calculation.)

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4.2 Expanding (a + bx)^n Questions

Practise Edexcel A Level Maths 4.2 Expanding (a + bx)^n with exam-style questions for A Level Maths. 99 questions, matched to the Edexcel A Level Maths (9MA0) specification and written in Paper 1, Paper 2 and Paper 3 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.

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4.2 Expanding (a + bx)^n Questions

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