easy question

I forgot 0! Agh!

0 * "Anything" = 0

2 * 2 = 4

0 + 0 = 0

2 + 2 = 4.

You are right once again CPhill!

2, of course.

2 + 2 = 4

2 * 2 = 4

^^

Let N be the number...so we have

N + N  = N * N

2N  = N^2     subtract 2N from each side

0  = N^2  - 2N     factor

0  = N ( N - 2)        setting each factor to 0, we have

N = 0

or

N - 2  = 0    add 2 to both sides

N  = 2

So...we actually have two numbers that work ......0 and 2    !!!!

That's OK , MathPeacock......the Guest might have only been referring to only positive integers......thus, your answer would be correct....!!!