$\left(4c^2\cdot2c^2\cdot c\right)^3$

$\int\frac{2x+1}{x^2+x+5}dx$

$\frac{d}{dx}\left(e^x\right)\left(x^{\:3}+4\right)$

$\frac{d}{dx}\left(\sqrt{38}\right)$

$66.46-5.95$

$\left(x^{2}-15x+56\right)+\left(x-8\right)$

$\frac{1}{2}rs^2+3rs-\frac{1}{5}r+2rs^2-3rs+\frac{1}{7}r$