Question

Which of the following could represent consecutive even integers?

x + 1, x + 2?
x + 1, x + 3?
2x, 2x + 1?

Answer 1

2x

Answer 2

I think the first and last. If you plug 5 in for x (just to pick a number) the first one gives you 6, 7, which are consecutive. The last one gives you 10, 11, which are also consecutive. The middle one gives you 6 and 8, which are not consecutive.

So the first and last.

Answer 3

I see