Calculus
14ln(9+e4x)+C\(\frac{1}{4}\[\ln\]\left\)(9+e^{4x}\(\right\))+C
14ln(3+e4x)+C\(\frac{1}{4}\[\ln\]\left\)(3+e^{4x}\(\right\))+C
4ln(9+e4x)+C4\(\ln\]\left\)(9+e^{4x}\(\right\))+C
94ln(9+e4x)+C\(\frac\)94\(\ln\]\left\)(9+e^{4x}\(\right\))+C