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For the expansion of $(1 - px)^5$, the coefficient of $x^3$ is $-2160$. Determine the constant $p$.
Mathematics 9709 · AS & A Level · Series
Series — practice question
Worked solution & mark scheme
This 3-mark question has a full step-by-step worked solution and mark scheme. One marking point: “Binomial term $5C3[(-)(px)^3]$ used, or a matching equivalent (seen or implied)” …
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