Answer
$-24y^{22}$
Work Step by Step
$(-3y)(2y^7)^3=(-3y)(2^3)(y^{(7\times3)})=(-3y)(8)(y^{21})=-24y^{22}$
Prealgebra (7th Edition)
by Martin-Gay, Elayn
Published by
Pearson
ISBN 10:
0321955048
ISBN 13:
978-0-32195-504-3
Chapter 10 - Section 10.2 - Multiplication Properties of Exponents - Exercise Set - Page 711: 29
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