Answer
$A=-2x^2+120x$
Work Step by Step
Let x = the length
$120-2x$ = the width
The area formula: $A=lw$
Plug in the given values:
$A=x(120-2x)$
$A=-2x^2+120x$
Algebra 2 (1st Edition)
by Larson, Ron; Boswell, Laurie; Kanold, Timothy D.; Stiff, Lee
Published by
McDougal Littell
ISBN 10:
0618595414
ISBN 13:
978-0-61859-541-9
Chapter 4 Quadratic Functions and Factoring - 4.7 Complete the Square - 4.7 Exercises - Problem Solving - Page 290: 67a
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