Answer
$9z(z^{3}+9)$
Work Step by Step
The greatest common factor of $9z^{4}+81z$ is $9z$.
We can use the distributive property to factor out the greatest common factor.
1. $9z^{4}+81z$
2. $9z\times z^{3}+9z\times9$
3. $9z(z^{3}+9)$
Intermediate Algebra (12th Edition)
by Lial, Margaret L.; Hornsby, John; McGinnis, Terry
Published by
Pearson
ISBN 10:
0321969359
ISBN 13:
978-0-32196-935-4
Chapter 5 - Section 5.1 - Greatest Common Factors and Factoring by Grouping - 5.1 Exercises - Page 329: 16
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