$\frac{6x^3+5x^2-19x-10}{1}$

$\int\left(\frac{x^2}{\sqrt{x^3+3}}\right)dx$

$\left(4x^3+3x-5\right)\left(x+3\right)$

$\frac{x}{2}+\frac{x+1}{7}+\:2\ge x$

$-6x+7\le2+13x$

$\left(x-1\right)\left(x-5\right)>0$

$\lim_{x\to\frac{1}{2}}\left(\frac{x\cos\left(x\right)}{e^x-\sqrt{e}}\right)$