A function f(x)f(x)f(x) has an antiderivative F(x)=x2+5F(x) = x^2 + 5F(x)=x2+5. What is f(x)f(x)f(x)?
2x2x2x
x2/2+5xx^2/2 + 5xx2/2+5x
2x+52x + 52x+5
x3/3+5xx^3/3 + 5xx3/3+5x