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## Homework Statement

Prove that when (n^2-(n-2)^2) is not divisible by 8, n is even

## Homework Equations

## The Attempt at a Solution

Could I just plug in numbers or is there a different way of doing it?

Let n=2 2^2-(2-2)^2/8=1/2

When n=2, 8 does not go evenly into the function.

Thank you very much

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