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Proof

Proof

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Question 5
a.

Write down algebraic expressions for three consecutive even integers, starting with 2n2n2n.

[1]
b.

Hence prove algebraically that the sum of any three consecutive even integers is always a multiple of 6.

[2]
Markscheme

Proof Questions

  1. GCSE
  2. /Maths
  3. /Proof

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

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