$\frac{x^5-6x^3+6x-6^2}{x^2-6}$

$\int t^3\left(3t^2-4\right)\frac{5}{2}dt$

$9x^2-6x+8$

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

$\lim_{n\to\infty}\left(\left(1+\frac{1}{n}\right)^n\right)$

$\lim_{x\to-\infty}\left(3-2x-\frac{x^2}{\sqrt{\left(x+1\right)\left(x-2\right)}}\right)$

$\frac{-4x^5-3}{x^3}$