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Equations and Inequalities

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Question 115
a.

The solution of the inequality

x2+ax>b x^2 + ax > b x2+ax>b

is x<−8x<-8x<−8 or x>3x>3x>3.

Find the values of a a\,a and bbb.

[3]
b.

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

x2+5x>24 x^2 + 5x > 24 x2+5x>24 16+3x<23+x 16 + 3x < 23 + x 16+3x<23+x
[1]
Markscheme

Equations and Inequalities Questions

  1. A Level
  2. /Maths
  3. /Equations and Inequalities

206 exam-style questions on Edexcel A Level Maths Equations and Inequalities, covering 3.1 Linear Simultaneous Equations, 3.2 Quadratic Simultaneous Equations, 3.3 Simultaneous Equations on Graphs, 3.4 Linear Inequalities, 3.5 Quadratic Inequalities, and 3.6 Inequalities on Graphs. Each one has a worked solution and a mark scheme showing where the marks go.

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