Precalculus (6th Edition) Blitzer

Published by Pearson
ISBN 10: 0-13446-914-3
ISBN 13: 978-0-13446-914-0

Chapter 2 - Review Exercises - Page 431: 67

Answer

2 real zeros (one with multiplicity 2) and 2 imaginary zeros

Work Step by Step

Step 1. Based on the graph, we can identify that the curve crosses the x-axis 1 time, given 1 real zero. Step 2. We can identify that the curve touches the x-axis and turns around once, indicating 1 real zero with multiplicity 2. Step 3. We can conclude that there are 2 real zeros ( one with multiplicity 2) and 2 imaginary zeros (total degree 5).
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