Answer
$36y^7$
Work Step by Step
Multiply the numerical coefficients. Add the powers of the variables.
$(-4y^4)(-9y^3)=(-4\times-9)y^{4+3}=36y^7$
Elementary Technical Mathematics
by Nelson, Robert; Eren, Dale;
Published by
Brooks Cole
ISBN 10:
1285199197
ISBN 13:
978-1-28519-919-1
Chapter 5 - Section 5.4 - Multiplication of Monomials - Exercise - Page 223: 8
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