The length of a rectangular garden is 4 yards more than the width. The area of the garden is 60 square yards. Find the dimensions of the garden.

Answer 1

Width = W yards.
Length = (W+4) yards.

A = (W+4)W = 60.
W^2 + 4W - 60 = 0
C = -60 = -6*10
(w-6)(w+10) = 0

W-6 = 0
W = 6

W+10 = 0
W = -10.
Use the positive value for W:
W = 6 Yds.
L = W+4 = 6+4 = 10 Yds.