15. The force on an object is given by F(x) = -2(x^2)(e^x), where F is in newtons, and x is in meters. What?

15. The force on an object is given by F(x) = -2(x^2)(e^x), where F is in newtons, and x is in meters. What is the change in the object’s potential energy (in joules) when the object moves from x = 2.1 m, to x = 2.5 m? (a) 49.78 (b) 123.45 (c) 43.09 (d) 122.89 (e) None of these