Answer
$ -32y^9$
Work Step by Step
$(4y^2)(-8y^7) = -8\times4\times y^2\times y^7 = -32y^{2+7} = -32y^9$
Algebra: A Combined Approach (4th Edition)
by Martin-Gay, Elayn
Published by
Pearson
ISBN 10:
0321726391
ISBN 13:
978-0-32172-639-1
Chapter 5 - Section 5.6 - Integrated Review - Exponents and Operations on Polynomials - Page 390: 2
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