Work out the first three terms in the binomial expansion of 1(2+2x)2\displaystyle \frac{1}{(2+2x)^2}(2+2x)21
[4]
b.
Write down the range of values of x x\,x for which the expansion is valid.
[1]
Markscheme
Binomial Expansion Questions
408 exam-style questions on Edexcel A Level Maths Binomial Expansion, covering 4.1 Expanding (1 + x)^n, 4.2 Expanding (a + bx)^n, and 4.3 Using Partial Fractions. Each one has a worked solution and a mark scheme showing where the marks go.