## College Algebra (10th Edition)

Published by Pearson

# Chapter 5 - Section 5.1 - Polynomial Functions and Models - 5.1 Assess Your Understanding: 26

#### Answer

Not a polynomial.

#### Work Step by Step

First, we simplify: $$\frac{x^2 -5}{x^3} = x^{-1} -5x^{-3}$$ By definition, a polynomial is a function containing only terms where x is raised to a positive, integer power or constants. x is raised to the negative third power. Because this is not a positive power, it is not a polynomial.

After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.