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4.2 Expanding (a + bx)^n

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Question 71

Find, in ascending powers of $x$ up to and including the term in $x^3$ , the binomial expansion of

3x)^{-2} \quad \text{for } |x| < \frac{1}{3}

fully simplifying each term.

[4]

Markscheme

4.2 Expanding (a + bx)^n Questions

A Level
Maths
4.2 Expanding (a + bx)^n

99 exam-style questions on Edexcel A Level Maths 4.2 Expanding (a + bx)^n. Each one has a worked solution and a mark scheme showing where the marks go.

4.2 Expanding (a + bx)^n

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4.2 Expanding (a + bx)^n

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Question 71

Find, in ascending powers of $x$ up to and including the term in $x^3$ , the binomial expansion of

3x)^{-2} \quad \text{for } |x| < \frac{1}{3}

fully simplifying each term.

[4]

Markscheme

4.2 Expanding (a + bx)^n Questions

A Level
Maths
4.2 Expanding (a + bx)^n

99 exam-style questions on Edexcel A Level Maths 4.2 Expanding (a + bx)^n. Each one has a worked solution and a mark scheme showing where the marks go.