Question

Is x²-x divisible by 2?​

Answer 1

Explanation:

No, because
`(x^2-x)/2` does equal
`x^2/2-x/2`. Honestly, it really depends on the value of x, as it provide whether or not the expression is divisible by 2.

Answer 2

Yes

Explanation:

There are two cases: Case 1: x is even, so x can be modelled as a generic number 2n, where n is a positive integer. Clearly this product is divisible by two. ... Hence, it is safe to generalise that the term x²-x is divisible by 2 for any positive integer x.