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Substitution

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Question 69

a=5a = 5a=5 b=−7b = -7b=−7 c=1c = 1c=1

Work out the value of b2−4acb^2 - 4acb2−4ac

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Substitution Questions

  1. GCSE
  2. /Maths
  3. /Substitution

108 exam-style questions on Edexcel GCSE Maths Substitution. Each one has a worked solution and a mark scheme showing where the marks go.

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