Mathematics 9709 · AS & A Level · Algebra

Algebra — practice question

Define $f(x) = \frac{2x(5 - x)}{(3 + x)(1 - x)^2}$.
(i)[5]

Express $f(x)$ as partial fractions.

(ii)[5]

Hence find the expansion of $f(x)$ in ascending powers of $x$ up to and including the term in $x^3$.

Worked solution & mark scheme

This 10-mark question has a full step-by-step worked solution and mark scheme. One marking point: State or indicate the form $\dfrac{A}{3+x}+\dfrac{B}{1-x}+\dfrac{C}{(1-x)^2}$

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