Work out the first three terms in the binomial expansion of 1(2+3x)2\displaystyle \frac{1}{(2+3x)^2}(2+3x)21
Write down the range of values of x x\,x for which the expansion is valid.
108 exam-style questions on WJEC A Level Maths 1.4.1 Sequences and Series - The Binomial Theorem. Each one has a worked solution and a mark scheme showing where the marks go.