## Algebra 1: Common Core (15th Edition)

Published by Prentice Hall

# Chapter 11 - Rational Expressions and Functions - 11-1 Simplifying Rational Expressions - Practice and Problem-Solving Exercises: 17

#### Answer

$w/(w-7); w \ne 7, -7$

#### Work Step by Step

In order to simplify this expression, we need something to be in the numerator and the denominator of the fraction so it can be canceled out. Therefore, we factor and obtain: $w(w+7)/(w+7)(w-7) \\\\ w/(w-7)$ w cannot equal 7 or -7, for if this were the case, the denominator of the fraction would cancel out to 0, which is not allowed.

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.