Intermediate Algebra (6th Edition)

Published by Pearson
ISBN 10: 0321785045
ISBN 13: 978-0-32178-504-6

Chapter 1 - Section 1.4 - Properties of Real Numbers and Algebraic Expressions - Exercise Set - Page 39: 56



Work Step by Step

We are given the expression $1.2m(9n-4)$. The distributive property holds that $a(b-c)=ab-ac$. $a=1.2m$, $b=9n$, and $c=4$ $a(b-c)=1.2m(9n)-1.2m(4)=10.8mn-4.8m$
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