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43 votes
43 votes
Is x²-x divisible by 2?​

User Arne Jenssen
by
2.6k points

2 Answers

15 votes
15 votes

Answer:

Explanation:

No, because
image does equal
image. Honestly, it really depends on the value of x, as it provide whether or not the expression is divisible by 2.

User Najam Awan
by
3.1k points
18 votes
18 votes

Answer:

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.

User Yakuza
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3.4k points