What is the derivative of f(x)=x4+π3f(x) = x^4 + \pi^3f(x)=x4+π3?
4x3+3π24x^3 + 3\pi^24x3+3π2
4x34x^34x3
x4x^4x4
4x3+π34x^3 + \pi^34x3+π3