SOLUTION: X squared minus x is divisible by 2

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Question 1023176: X squared minus x is divisible by 2
Answer by ikleyn(52872) About Me  (Show Source):
You can put this solution on YOUR website!
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highlight%28If_x_is_an_integer_then%29 x squared minus x is divisible by 2.
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x%5E2-x = x*(x-1).

This number is even, because it is the product of two consecutive integer, one of which is multiple of 2.

Why should I write the correct condition instead f you?