Answer
$= 150$
Work Step by Step
We plug in the values for the variables that are given in the problem:
$(x+2y)(2x-y)$ for $x =7 $, $y = 4$
$= (7 + 2(4))(2(7)- 4)$
$= (7+8)(14-4)$
$= 15(10)$
$= 150$
Elementary Algebra
by Kaufmann, Jerome; Schwitters, Karen;
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 - Page 7: 48
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