#### Answer

polynomial

#### Work Step by Step

A polynomial is a finite some of terms in which all variables are raised to nonnegative integer powers and no variables appear in any denominator.
For example, $8x+9$ is a polynomial.
$4x^{-2}+9$ is not a polynomial because the variable in the first term is raised to a negative integer power.
$\frac{2}{x^{2}}$+9$ is also not a polynomial because the first term has a variable in its denominator.