Given that f(x)=x^2-2x+5 and g(x)+x+3, what is the value of f(g(5))-g(f(5))?
f(5) =5^2-2(5)+5 = 20
g(5) = 5+3 = 8
f(g(5))-g (f(5)) then equals f(8) -g(20) = 8^2-2(8)+5 - (20+3) I'll let you finish....
so 30?
+36915 
