Is x^(-2)+5 a polynomial expression? why or why not?

F(x) = x^2 + 0x + 5 does NOT satisfy the criteria for a polynomial expression:

1) all the powers of x, beginning with 0, are positive integers
2) the terms are arranged in descending order by powers of x

Here we have x^(-2), with a negative exponent.

No, x^2 + 0x + 5 does NOT satisfy the criteria for a polynomial expression.

The correct answer is 7

Where is the picture