2026 NASS P1 Q20

2026 NASS P1 Q20

Secondary 4
6 marks

\(\sqrt[3]{\dfrac{x^3+2y}{y}}=2x\)

    1. Rearrange the formula to make \(y\) the subject.[3]
    2. Find the value of \(y\) when \(x\) is \(-2\).[1]
  2. \(p=\dfrac3q+2\)
    Sue claims that the value of \(q\) is undefined when \(p=3\).
    Explain why she may be wrong.[2]

Solution:

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Answer:(a)(i) \(y=\dfrac{x^3}{8x^3-2}\) (ii) \(\dfrac4{33}\). (b) \(q=3\) when \(p=3\); \(p=2\) is excluded.

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