Question 133823
let w be the width.
l is the length or l=(2w-1).
w(2w-1)=120
2w^2-w-120=0
(2w+15)(w-8)=0
w-8=0
w=8 answer for the width.
2*8-1=16-1=15 for the length.
proof:
8*15=120
120=120