Question 284587
let the width be x

width = 14-2x

length = 18-2x

(14-2x)(18-2x)=192

252-28x-36x+4x^2=192

252-64x+4x^2=192

4x^2-64x+60=0

x^2-16x+15=0

x^2-15x-x+15=0

x(x-15)-1(x-15)=0

(x-15)(x-1)=0

x=15 or 1

so width = 1inch