$36x^2+105x-50=0$

$\int^{-1}_{-2}\left(x-\frac{1}{x^2}\right)dx$

$6n^2-20$

$\left(\frac{2x+1}{\left(x-1\right)^3\left(x^2+4\right)^2}\right)$

$\left|\frac{\left(2+i\sqrt{5}\right)\left(1+i\sqrt{3}\right)^3}{\sqrt{5}+i\sqrt{3}}\right|$

$\int xln\left(\frac{15-x}{31+x}\right)dx$

$\frac{d}{dx}\left(\frac{2}{x^3}+cot\left(y\right)=-8y^{\frac{5}{3}}cos\left(x\right)\right)$