$\frac{d}{dx}\:-\:3\cdot x^2\:=\:0$

$\left(2\cdot n+3\right)^2$

$\int\frac{8+t+6t^{2}-12t^{3}}{\left(3t^{2}+4\right)\left(t^{2}+7\right)}dt$

$\left(\frac{81r^0t^5s^2}{64t^3s^{-8}r^4}\right)^{-\frac{1}{2}}$

$\left(5a^2b^3\right)\left(8ab^4c^5\right)$

$\left(3^5.5^{-4}\right).\left(2^3.3^{-7}.5^6\right)$

$\left(\frac{\left(4x^5y^2\right)}{8x^3}\right)^4$