Proof

Medium Hard

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Question 6

72%

Prove that $3n + 2)^2 - (3n - 2)^2$ is always a multiple of 8, for all positive integer values of $n$ .

[2]

Proof Questions

GCSE
Maths
Proof

Practise OCR GCSE Maths Proof with exam-style questions for Foundation and Higher tier. 56 questions, matched to the OCR GCSE Maths (J560) specification and written in the written papers style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.