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O-LevelMathematicsAlgebra and graphs4024/12 · May/June 2023 · Q214 Marks

Solve. 5x / (x-3) = x+4

  1. Solve. 5x / (x-3) = x+4[4]

Mark scheme

Marking points from the official mark scheme (May/June 2023). The mark or mark type is shown in brackets.

  1. 21 -2, 6
  2. 21 B2 for x² - 4x - 12[=0]
  3. 21 or M1 for [5x =] x² + 4x - 3x - 12 or better
  4. 21 AND M1 for (x - 6)(x + 2)[=0] oe factorised expression or (-(-4) ±√((-4)² - 4(1)(-12)))/2 oe
  5. 21 FT their 3-term quadratic

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About this question

Topic
Algebra and graphs, O-Level Mathematics (syllabus 4024). Structured question, 4 marks.
Source
O-Level Mathematics, May/June 2023 Paper 1 Variant 2, question 21.

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