The area of the rectangular slab of foam insulation is 16 square meters. Find the dimensions (in m) of the slab. (2w+4)m

Answer 1

if length = 4 more than twice the width

L=2W +4

16 =LW = (2W+4)W = 2W^2 +4W

2W^2 + 4W -16 = 0

W^2 + 2W - 8 = 0

(W+4)(W-2) = 0

W = 2 meters wide

L = 8 meters long

8x2 = 16 m^2

L=2W + 4

8 = 2(2) + 4 = 4+4