Work out the first four terms, in ascending powers of xxx, in the binomial expansion of 1(1+x)2\displaystyle \frac{1}{(1+x)^2}(1+x)21
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.