$\frac{d}{dx}\left(y=\frac{x^2-4}{x^2+4}\right)$

$\left(7x^2+4x-3^2\right)$

$\frac{dy}{dx}\left(x^3+y^2=5x^2\right)$

$\frac{10x^3+22x^2+17x+15}{5x+6}$

$e^x+e^{2x}$

$\frac{d}{dx}\left(4\sqrt{x}-\frac{2}{x^2}+\frac{3}{4}\sqrt[3]{x^2}\right)$