Precalculus (6th Edition) Blitzer

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

Chapter 2 - Test - Page 434: 19

Answer

$x=-1$ (multiplicity 2) and $x=\frac{2}{3}$
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Work Step by Step

Step 1. Based on the graph, we can identify a zero of $x=-1$ with multiplicity 2. Step 2. Using synthetic division as shown in the figure, the function can be factored as $f(x)=-(x+1)^2(3x-2)$ and the zeros are $x=-1$ (multiplicity 2) and $x=\frac{2}{3}$ Step 3. See graph in the figure.
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