The length of a rectangle storage room is 8 feet longer than its width. If the area of the room is 240 ft.² feet, find the width and length of the room

Answer 1

w(w+8)=240

w^2 + 8w - 240 = 0

( w + 20 )( w - 12 ) = 0

w+20=0 --> w = -20 disqualified

w=12 --> L= 20

12 by 20