Answer
True.
Work Step by Step
True, because for a 3rd degree polynomial equation with real coefficients, the end behaviors will have opposite signs, which means that the function must cross the x-axis at least once.
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 2.5 - Zeros of Polynomial Functions - Exercise Set - Page 379: 89
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