Question

The area od a rectangle wall of a barn is 133 square feet. Its length is 12 feet longer that the width. Find the length and width of the wall of the barn.

Answer 1

width = w
length = w + 12
area = l * w = w(w + 12) = w^2 + 12w = 133
w^2 + 12w - 133 = 0
(w + 19)(w - 7) = 0
w = 7 (negative width makes no sense)
l = 19

Answer 2

thanks :D