$y\ln\left(x\right)\ln\left(y\right)dx+xdy=0$

$\frac{dy}{dx}=\frac{x\left(\log\left(x\right)+1\right)}{siny+ycosy}$

$\int\frac{x}{\left(x^2+7\right)^{1.3}}\:dx$

$\left(2x^2-x\right)^4$

$\left(2x^2-xy+y^2\right)\cdot\left(x+y\right)$

$\frac{c+10}{9}\:=\:\frac{c-2}{3}$

$\lim_{x\to\infty}\left(\frac{\sin\left(x+1\right)}{\sin\left(x\right)}\right)$