Area and Dimensions of a room

Question

The length of a rectangular room is 8 meters more than the width. If the area of the room is 48 square meters, find the dimensions of the room

Answer 1

L = W + 8

LW = 48

(W + 8)W = 48

W² + 8W - 48 = 0

(W + 12)(W - 4) = 0

W must be positive, so the width is 4 meters, and the length is 12 meters