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: 99

Answer

$3x+12$

Work Step by Step

We are given the statement $3(x+4)=3x+4$, which is an incorrect application of the distributive property. The distributive property holds that $a(b+c)=ab+ac$. In this example, $a=3$, $b=x$, and $c=4$, so the statement should be $3(x+4)=3\times x+3\times4=3x+12$
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