In this question you should assume −13<x<13\displaystyle -\frac{1}{3} < x < \frac{1}{3}−31<x<31
For the binomial expansion of (1−3x)−2(1 - 3x)^{-2}(1−3x)−2 find and simplify the first four terms.
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.