Solve integral $\int\frac{2x}{e^{2x}+4}\ dx$

Question

$$∫\frac{2x}{e^{2x}+4}\,dx$$

I tried to transform denominator to $e^{2*x}+2^2$ to match formula:

$$∫\frac{1}{x^2+a^2}\ dx = \frac{1}{a}\arctan\left(\frac{x}{a}\right)+c$$ But I have no idea what to do next