$2x^{2}y^{11}+3xy^{1}-y=0$

$\frac{dy}{dx}\:+2\cdot\:\:y=e^x\:,\:y\left(0\right)\:=\:1$

$\lim_{x\to\infty}\left(\frac{\left(x^3\right)}{\left(e^{x^2}\right)}\right)$

$\left(-7a^4bc^3\right)\left(5ab^4c^2\right)$

$\lim_{x\to-2}\left(3x^2\right)$

$5^{8-2}$

$x^{-\frac{3}{2}}+2x^{-\frac{1}{2}}+x^{\frac{1}{2}}$