$\int\frac{x^2}{1+x^3}dx$

$\frac{1}{x^2+4x}$

$5\:-\:\left[\:-\:4\:\:-\:\left(\:-5\:\:-\:\:8\:-\:\:-\:11\:-\:7\:\right)\:+\left(10\:\:-\:\:9\:\right)\:+6\:\right]$

$\lim_{x\to1}\left(\frac{x-ln\left(x\right)}{x^2-1}\right)$

$\int\frac{5x+2}{\left(x-5\right)^2\left(x-2\right)}dx$

$\int\frac{3cscxcotx}{cscx+2}dx$

$3\log\left(a\right)-4\log\left(b\right)$