2025 PHS PRELIMS P1 Q6
2025 PHS PRELIMS P1 Q6
Secondary 4
4 marks
2025 Presbyterian High School Prelims A Math Paper 1
- Express \(y=4x-4x^2-3\) in the form \(p(x+q)^2+r\) where \(p\), \(q\) and \(r\) are constants.[2]
- Hence, explain whether \(4x-4x^2-3=0\) has any real solutions.[2]
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Answer:(a) \(y=-4(x-\frac{1}{2})^2-2\) (b) No real solutions.
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