0580/31 Oct/Nov 2025, Question 17: Simple Factorising
Cambridge IGCSE Mathematics 0580 · Paper 31 (Core) · Calculator · 2 marks
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The question, in short
Factorise the expression 21x − 7xy.
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Solution · 2 marks
- 1HCF of 21x and 7xy is 7x
- 221x − 7xy = 7x(3 − y)
Answer7x(3 − y)
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Also searched as: 0580/31/O/N/25 · 0580_w25_qp_31 · 0580 w25 31 · question 17.
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