0580/21 May/Jun 2022, Question 21: Factorising by Grouping
Cambridge IGCSE Mathematics 0580 · Paper 21 (Extended) · Calculator · 2 marks
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The question, in short
Factorise the expression 1 − q − a + aq completely.
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Solution · 2 marks
- 11 − q − a + aq = (1 − q) − a(1 − q)
- 2= (1 − q)(1 − a)
Answer(1 − q)(1 − a) or (a − 1)(q − 1)
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Also searched as: 0580/21/M/J/22 · 0580_s22_qp_21 · 0580 s22 21 · question 21.
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