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0580/22 May/Jun 2021, Question 22: Algebraic Fractions

Cambridge IGCSE Mathematics 0580 · Paper 22 (Extended) · Calculator · 4 marks

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The question, in short

Simplify the algebraic fraction (2x² − 5x − 12)/(3x² − 12x), showing factorisation of numerator and denominator.

Summarised in our own words. Use the official paper for the exact wording and any diagrams.

Solution · 4 marks

  1. 12x² − 5x − 12 = (x − 4)(2x + 3)
  2. 23x² − 12x = 3x(x − 4)
  3. 3(x − 4)(2x + 3)/(3x(x − 4))
  4. 4= (2x + 3)/(3x)

Answer(2x + 3)/(3x)

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Also searched as: 0580/22/M/J/21 · 0580_s21_qp_22 · 0580 s21 22 · question 22.
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