Answer
$81x^4.$
Work Step by Step
We distribute the exponents and simplify the result:
$$(3x)^4=3^4x^4=81x^4
.$$
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 224: 34
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