For any integer x, x squared -x will always produce an even value

will always have an even value.

Step-by-step explanation:

We are given an integer x.

Let x be even, then it can be written in the form x = 2n, where n is an integer.

If we evaluate,

Thus, it have an even value.

If we take x to be an odd integer, then,it can be written in the form x = 2n+1, where n is an integer.

Thus, it have an even value.

Thus,

will always have an even value.

step-by-step explanation:

is their an equation anywhere i can take a   look at it and see if i am right.