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Equations and Inequalities

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Question 77
a.

Show that the inequality can be written as

x2+x−12≤0 x^2 + x - 12 \leq 0 x2+x−12≤0
[1]
b.

Hence solve the inequality

x(x+1)≤12 x(x + 1) \leq 12 x(x+1)≤12
[2]
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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