Question 982476
width =x
length = x+3

Area = l*w

Area =x(x+3) =18

x^2+3x-18=0

x^2+6x-3x-18=0

x(x+6)-3(x+6)=0

(x-3)(x+6)=0

so x=3m width

length = 3+3=6m