Precalculus (6th Edition) Blitzer

by Blitzer, Robert F.

Published by Pearson

ISBN 10: 0-13446-914-3

ISBN 13: 978-0-13446-914-0

Chapter 2 - Section 2.7 - Polynomial and Rational Inequalities - Concept and Vocabulary Check - Page 412: 1

Answer

We solve the polynomial inequality ${{x}^{2}}+8x+15>0$ by first solving the equation $f\left( x \right)=0$. The real solutions of the equation, -5 and -3, shown on the number line, are called boundary points.

Work Step by Step

See below:

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