Find the first three terms, in ascending powers of xxx, of the binomial expansion of
1(4+x)2\displaystyle \frac{1}{(4 + x)^2}(4+x)21
giving each coefficient in its simplest form.
144 exam-style questions on AQA A Level Maths 1.7.1 Binomial expansion. Each one has a worked solution and a mark scheme showing where the marks go.