$\left(5+x+\cos\left(\frac{\pi}{8}\right)\right)^2$

$2xy\:dx\:+\left(x^2-4y\right)dy=0$

$\int\frac{2x-3}{x^2\left(x-1\right)}dx$

$\int\frac{-1}{\left(x^2+36\right)^{\frac{3}{2}}}dx$

$-3x-2\le\:19$

$\left(3y^3+\frac{1}{5}x\right)\left(3y-\frac{1}{4}x\right)$

$\int\sin\left(4\right)\cdot\tan\left(5\right)$