Question 353244
Hi,
*Note Area of a rectangle is l*w
Let w be the width, then (w+ 8) is the length
.
w*(w + 8) = 180ft^2
.
w^2 + 8w - 180ft^2  = 0
.
factor
(w - 10)(w + 18) = 0
.
(w + 18) = 0
w = -18  (have no use this negative solution) 
.
(w - 10) = 0
w = 10Ft
.
Length is (x+8)
Length is 18ft
.
check your answer
10ft*18ft = 180ft^2