$\int\frac{2x}{x-5}dx$

$\sqrt{\cos\left(x\right)^2+\left(1+\sin\left(x\right)\right)^2}$

$\left(6x^5\right)\cdot\left(7x^2+9x^3-2x\right)^2$

$log\left(x\right)-\frac{1}{2}log\left(y\right)+6log\left(z\right)$

$\lim_{r\to4}\left(\frac{r^{3}-64}{r-4}\right)$

$\frac{2x^2.}{x^2+9}$