Algebra 1

Published by Prentice Hall
ISBN 10: 0133500403
ISBN 13: 978-0-13350-040-0

Chapter 1 - Foundations for Algebra - 1-4 Properties of Real Numbers - Practice and Problem-Solving Exercises - Page 27: 21



Work Step by Step

We start with the given expression: $9(2x)$ The associative property of multiplication states that changing the grouping of the factors does not affect the product. We use this property to group the factors differently: $(9\times2)\times x$ We use the order of operations to simplify. We simplify inside the parentheses with multiplication: $18\times x$ We multiply: $18x$
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