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Proof

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Question 28

k k\,k is an integer. Prove algebraically that the sum of k(k−5)k(k - 5)k(k−5) and k+4k + 4k+4 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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