Course home

1.7.1 Binomial expansion

Find the first three terms, in ascending powers of $x$ , in the expansion of $3 + kx)^4$ where $k\,$ is a positive constant.

[3]

Hence, given that the coefficient of $x\,$ is four times the coefficient of $x^2$ , find the value of $k$ .

[2]

1.7.1 Binomial expansion Questions

144 exam-style questions on AQA A Level Maths 1.7.1 Binomial expansion. Each one has a worked solution and a mark scheme showing where the marks go.

Find the first three terms, in ascending powers of $x$ , in the expansion of $3 + kx)^4$ where $k\,$ is a positive constant.

[3]

Hence, given that the coefficient of $x\,$ is four times the coefficient of $x^2$ , find the value of $k$ .

[2]

144 exam-style questions on AQA A Level Maths 1.7.1 Binomial expansion. Each one has a worked solution and a mark scheme showing where the marks go.