I have a word problem and then a finite difference problem. You are playing golf on the 4th hole of your favorite course. The green on this hole is circular with a radius of 20 yards. If the hole is located at the exact center of the green, what is the probablility that the ball will randomly fall within 2 feet of the center of the hole? finding Finite differences - nth order differences f(x) = 2x^2 -5x^2 -x I don't know how to start it and how to get the answer. Thanks for the help.