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Quadratics

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Question 74

The equation x2+(n+4)x+(2−2n)=0x^2 + (n + 4)x + (2 - 2n) = 0x2+(n+4)x+(2−2n)=0, where n n\,n is a constant has two distinct real roots.

Find the set of possible values for nnn, giving your answer in exact form.

[4]
Markscheme

Quadratics Questions

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

322 exam-style questions on Edexcel A 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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