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Proof

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Question 90
a.

Expand and simplify

(2n+1)2+(2n+3)2 (2n + 1)^2 + (2n + 3)^2 (2n+1)2+(2n+3)2
[2]
b.

Hence prove that the sum of the squares of two consecutive odd numbers is always 2 more than a multiple of 8

[1]
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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