2025 CGS PRELIMS P1 Q16

2025 CGS PRELIMS P1 Q16

Secondary 4
2 marks
  1. Expand and simplify \((3x-5p)^2\).[1]
  2. Given that \((3x-5p)^2=9x^2-90x+225\), find \(p\).[1]

Solution:

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Answer:(a) \(9x^2-30px+25p^2\) (b) \(p=3\)

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