# Is the expression #5q^-4+6q# a polynomial?

##### 1 Answer

May 18, 2017

No. It is not a polynomial. See explanation.

#### Explanation:

A polynomial is a sum of expressions in a form of

in the given example one of the exponents is negative, therfore not natural, so it is not a polynomial.

Another difference is the domain of the expression. A polynomial is defined for all real values of the variable while the expression given is not defined for