$\left(3a^2+3m\right)^2$

$a^5+10a^4+30a^3+20a^2-31a-30$

$\frac{d}{dx}\left(x+4\right)^4\left(5x-9\right)^3$

$\int_0^1\left(\frac{1}{x^2+49}\right)dx$

$\frac{d}{dx}7x^5.\arctan x$

$4x-12x+25$

$\frac{d}{dx}-cot\left(\frac{3\pi}{2}\right)\left(csc\left(\frac{3\pi}{2}\right)\right)$