2025 SJI PRELIMS P1 Q18

2025 SJI PRELIMS P1 Q18

Secondary 4

3 marks

Factorise \(x^2-169\).[1]
Use (a) to find the two factors of 1431 other than 1 and 1431.[2]

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Answer:(a) \((x+13)(x-13)\) (b) \(27,53\)

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