Answer
$2$ zeros.
Work Step by Step
$x^2-2x-8=0\\(x-1)^2-1-8=0\\(x-1)^2=9\\x-1=\pm3\\x=1\pm3$.
Thus the polynomial has $2$ zeros.
Algebra and Trigonometry 10th Edition
by Larson, Ron
Published by
Cengage Learning
ISBN 10:
9781337271172
ISBN 13:
978-1-33727-117-2
Chapter 3 - Review Exercises - Page 302: 70
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