$\left(3x^2-2x\left(3x^2+2y\right)\right)$

$m^2-20m+50=0$

$\int_{\frac{\pi}{6}}^{\frac{\pi^2}{6}}\left(tan\left(t\right)\right)dt$

$\frac{dy}{dx}+8x^3y=0,\:y\left(0\right)=e$

$2\cdot\frac{5}{13}+\frac{1}{4}\cdot\frac{12}{13}$

$77+56-14$

$\:\left(-54\right)\:-\:\left(-32\right)$