Mathematics 9709 · AS & A Level · Series

Series — practice question

(main)[5]

Find the coefficient of $x^2$ when $(1 + x^2)\left(\frac{x}{2} - \frac{4}{x}\right)^6$ is expanded.

Worked solution & mark scheme

This 5-mark question has a full step-by-step worked solution and mark scheme. One marking point: “Expands $(1+x^2)(2-x)^4$” …

  • Full mark scheme, point by point
  • Step-by-step worked solution
  • Write your answer & get it marked instantly by AI