The area of a rectangle is 72cm2 the length of the rectangle is 6cm longer than the width

what is the width of the rectangle

a: 2cm

b: 6cm

c: 8cn

d: 10cm

A) W * L = 72
B) L = W + 6
A) W = 72 / L Substituting this into B
B) L = 72 / L + 6 Multiplying both sides by "L"
B) L^2 = 72 + 6L
B) L^2 -6L -72 = 0
L = 12
Width = 6