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Quadratics

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Question 7
a.

By completing the square, find in terms of the constant p p\,p the roots of the equation

x2+px+4=0 x^2+px+4=0 x2+px+4=0
[3]
b.

Hence find the set of values of p p\,p for which the equation has no real roots.

[1]
Markscheme

Quadratics Questions

  1. AS Level
  2. /Maths
  3. /Quadratics

37 exam-style questions on Edexcel AS Level Maths Quadratics, covering 2.1 Solving Quadratics, 2.2 Completing the Square, 2.3 Sketching Quadratic Graphs, 2.4 The Discriminant, and 2.5 Modelling with Quadratics. Each one has a worked solution and a mark scheme showing where the marks go.

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