Introductory Algebra for College Students (7th Edition)

Published by Pearson
ISBN 10: 0-13417-805-X
ISBN 13: 978-0-13417-805-9

Chapter 7 - Section 7.1 - Rational Expressions and Their Simplification - Exercise Set - Page 493: 107


$\displaystyle \frac{1}{x+4},\qquad\frac{x^{2}+1}{x+4}...$ (sample answers)

Work Step by Step

A rational expression is undefined at any value that produces a denominator of 0. So, place a polynomial such as $(x+4)$ as a factor of the denominator.... $\displaystyle \frac{1}{x+4},\qquad\frac{x^{2}+1}{x+4}...$ (sample answers)
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