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CAIE IGCSE Additional Math 2.4 Solve Quadratic Equations Questions

Practise Cambridge IGCSE Additional Mathematics by solving quadratic equations accurately, selecting valid roots and reporting exact or suitable approximate answers.

Syllabus
2028–2030
Course
Additional Mathematics 0606

Exam points

  • Solve quadratic equations by factorisation, the quadratic formula or completing the square.
  • Select an exact or appropriately rounded solution and handle equations transformed from other forms.
  • Check and report all valid real roots while respecting restrictions introduced by substitutions or the original equation.

CAIE IGCSE Additional Math 2.4 Solve Quadratic Equations Questions question 1

[Maximum number: 2]

The number of permutations of n items taken 4 at a time is equal to 16×\frac{1}{6} \times the number of permutations of 2 n items taken 3 at a time.

Hence find the value of n.

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