Question

A rectangular sandbox for a play ground is being designed so that its length is 6 ft longer than its width. If the area of the sandbox is to be 112 ft^2 what will it’s length be

Answer 1

l = w + 6

w(w + 6) = 112

w² + 6w - 112 = 0

(w - 8)(w + 14) = 0

w = 8 ft, l = 14 ft