$\int e^x\left(e^x-6\right)^{-4}dx$

$\left(2x+y^2-\cos\left(x+y\right)\right)dx+\left(2xy-\cos\left(x+y\right)-e^2\right)dy=0$

$3\:a\:m+6\:a\:m$

$\log\left(\frac{x^{17}y^{14}}{z^6}\right)$

$\frac{dy}{dx}+5e^{x+y}=0$

$\frac{\left(1-cos^2\left(x\right)\right)}{x}$

$\frac{d}{dx}\left(x^2+1\right)\left(x^3+1\right)$