Find the first 3 terms, in ascending powers of xxx, of the binomial expansion of
(2+kx)7 (2 + kx)^7 (2+kx)7where k k\,k is a constant. Give each term in its simplest form.
Given that the coefficient of x2 x^2\,x2 is 6 times the coefficient of xxx, find the value of kkk.
10 exam-style questions on Edexcel A Level Old Maths The Binomial Expansion. Each one has a worked solution and a mark scheme showing where the marks go.