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Proof

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Question 26

k k\,k is an integer. Prove algebraically that the expression (k−1)(k−2)+k−1(k - 1)(k - 2) + k - 1(k−1)(k−2)+k−1 is always a square number.

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Proof Questions

  1. GCSE
  2. /Maths
  3. /Proof

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

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