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

$\left(x-2-\sqrt{3}\right)\left(x-2+\sqrt{3}\right)$

$\int\frac{x^3}{\sqrt{\left(\left(2x\right)^2+9\right)^3}}dx$

$20m^2n^2\:-\:60mnp\:+\:45p^2$

$\sqrt[3]{\frac{c}{2d^2}}$

$\left(2ab^3-4x^5\right)^5$

$\frac{dy}{dt}-\frac{y}{t}=tsin\left(t\right)$