Algebra Proof - GCSE Mathematics Q1

This video is all about GCSE Mathematics proof and forms part of the playlist Proof - GCSE Mathematics. The question deals with:

The nth even number is 2n.
The next even number after 2n is 2n + 2
(a) Explain why.
(b) Write down an expression, in terms of n, for the next even number after 2n + 2
(c) Show algebraically that the sum of any 3 consecutive even numbers is always a multiple of 6

Proof uses algebra and is usually on a GCSE non calculator question paper.

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