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3.5 Quadratic Inequalities

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Question 18
a.

Show that (x+4)(x+2)<15(x + 4)(x + 2) < 15(x+4)(x+2)<15 can be written as x2+6x−7<0x^2+6x-7<0x2+6x−7<0.

[1]
b.

Hence find the set of values of x x\,x for which

(x+4)(x+2)<15 (x + 4)(x + 2) < 15 (x+4)(x+2)<15
[3]
Markscheme

3.5 Quadratic Inequalities Questions

  1. A Level
  2. /Maths
  3. /3.5 Quadratic Inequalities

38 exam-style questions on Edexcel A Level Maths 3.5 Quadratic Inequalities. Each one has a worked solution and a mark scheme showing where the marks go.

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