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Proof

Proof

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Question 7
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x x\,x is an integer. Prove algebraically that the sum of x(x+5)x(x + 5)x(x+5) and x+9x + 9x+9 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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