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O-LevelAdditional MathematicsQuadratic functions4037/21 · May/June 2014 · Q13 Marks

Find the set of values of x for which x(x + 2) <x.

  1. Find the set of values of x for which x(x + 2) <x.[3]

Mark scheme

Marking points from the official mark scheme (May/June 2014). The mark or mark type is shown in brackets.

  1. [M1] expands and rearranges
  2. [A1] critical values 0 and -1 soi
  3. [A1] condone space, comma, “and” but not "or" Mark final answer.

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About this question

Topic
Quadratic functions, O-Level Additional Mathematics (syllabus 4037). Structured question, 3 marks.
Source
O-Level Additional Mathematics, May/June 2014 Paper 2 Variant 1, question 1.

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