$\left(y^2+3\right)dx+\left(2xy-4\right)dy=0$

$\lim_{x\to2}\left(\frac{x^3-8}{4x^3-x-29}\right)$

$\int x\left(\frac{7}{x^6}-sin\left(x\right)+\sqrt{x}\:\right)dx$

$14\frac{\left(2\right)}{\left(2\right)}$

$\left(9x^3-a^2b\right)^2$

$\frac{dy}{dx}=\left(x+2\right)\left(3-y\right)$

$\:6y^2+37y-35$