$x^8\cdot\frac{x^8}{1}\cdot\frac{1}{x^8}\cdot\frac{1}{x^{16}}$

$\int_2^{\infty}\left(\frac{1}{x^3-x}\right)dx$

$4log\left(x\right)-\frac{1}{5}log\left(x^2+1\right)+3log\left(x-1\right)$

$\int x^3\sqrt{x^4-16}dx$

$\int\left(16x+8\right)\left(4x^2+4x\right)dx$

$x^1-12x^2+48x-64$

$\lim_{x\to\infty}\left(\frac{4x^2}{e^{7x}}\right)$