College Algebra (6th Edition)

Published by Pearson
ISBN 10: 0-32178-228-3
ISBN 13: 978-0-32178-228-1

Chapter 3 - Polynomial and Rational Functions - Exercise Set 3.6 - Page 420: 71

Answer

$[-6, -0.5] ∪ [1, ∞)$

Work Step by Step

Given: The inequality $2x^{3}+11x^{2}≥7x+6$ Rewrite the polynomial Inequality as follows: $2x^{3}+11x^{2}-7x-6≥0$ According to the graph given in the question, the intervals of f(x) greater than 0 are$[-6, -0.5]$ or $[1, ∞)$. Thus, the interval notation of the inequality is$[-6, -0.5] ∪ [1, ∞)$ .
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