Expand (1−2x)(2+x)8(1-2x)(2+x)^8(1−2x)(2+x)8 in ascending powers of x x\,x up to and including x3x^3x3.
107 exam-style questions on CCEA A Level Maths 1.3 Sequences and series, covering 1.3.1 Sequences and series and 1.3.2 Sequences and series. Each one has a worked solution and a mark scheme showing where the marks go.