$\frac{dy}{dx}\left(\frac{y}{x-y}=\:2+x^2\right)$

$\left(9x^2+5\right)^4$

$\lim_{x\to2.01}\left(\frac{x-2}{x^2-x-2}\right)$

$99.86-13.08-45.17+0.33+1.2687$

$\left(7xcos\left(x\right)\right)dx+\left(6y^5+3\right)dy=0$

$-160\cdot\left(-21\cdot\:1668\right)$

$x^2=2304m^2$