The amount of energy a microwave oven uses (in the form of electricity) is given by the function f(x)=5x+9, where x is the amount of time the microwave is turned on. The amount of energy the microwave puts out is modeled by the function g(x)=−x2+3x+1, where x is the amount of time the microwave is turned on. What is the difference between the amount of energy the microwave uses and the amount it puts out?