$\frac{d}{dx}xy^2+\sqrt{x}e^y=13$

$y'=\frac{x^2}{y}$

$\lim_{x\to\infty}\left(1+\frac{1}{3x-1}\right)^{3x}$

$5x^2+20x+3$

$\left(xa-xb\right)\left(xa-xb\right)$

$\int\frac{\left(x+2\right)}{\sqrt[3]{x^2}}dx$

$\ln\left(\sqrt{100-x^2}\right)$