Question 1057733
If the length is l, then w, width, equals l-4. So your equation looks like:
A=l x w
60= l(l-4)
Solving, we get:
lē-4l-60=0
(l-10)(l+6)=0
l=10, -6
Your length is 10 cm, width is 6 cm. ☺☺☺☺