Answer
$-1250x^{9}$
Work Step by Step
$(-2x)(5x^2)^4=(-2x)(5^4)(x^{(2\times4)})=(-2x)(625)(x^{8})=-1250x^{9}$
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: 30
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