Answer
4 ft wide and 7 ft long
Work Step by Step
l=2w-1
A=wl
28=w(2w-1)
28=2w$^2$-w
2w-w-28=0
(2w+7)(w-4)=0
w=4 ft
l=2(4)-1=7 ft
College Algebra (6th Edition)
by Blitzer, Robert F.
Published by
Pearson
ISBN 10:
0-32178-228-3
ISBN 13:
978-0-32178-228-1
Chapter 1 - Mid-Chapter Check Point - Page 166: 36
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