Elementary Algebra

Published by Cengage Learning
ISBN 10: 1285194055
ISBN 13: 978-1-28519-405-9

Chapter 1 - Some Basic Concepts of Arithmetic and Algebra - 1.1 - Numerical and Algebraic Expressions - Problem Set 1.1: 49

Answer

$= 99$

Work Step by Step

We plug in the values for the variables that are given in the problem: $(5x-2y)(3x+4y)$ $= (5(3)-2(6))(3(3)+4(6))$ $= (15 - 12)(9 + 24)$ $= 3(33)$ $= 99$
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