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3.5 Quadratic Inequalities

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Question 27
a.

Find the quadratic inequality in the form x2+ax+b<0x^2+ax+b<0x2+ax+b<0 whose solution is

−4<x<3 -4<x<3 −4<x<3
[3]
b.

Find the value of k k\,k for which the set of values for x x\,x which satisfy both of the inequalities

x2+x−12<0 x^2+x-12<0 x2+x−12<0 9+3x≤k+x 9+3x\leq k+x 9+3x≤k+x

is −4<x≤12\displaystyle -4<x\leq\frac{1}{2}−4<x≤21​

[2]
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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