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

$\lim_{x\to0}\left(\frac{x^3-x^2}{x-1}\right)$

$5-3x=-4$

$\left(\frac{a}{3}-\frac{b}{2}\right)^2$

$\int_2^2\left(\frac{2x+1}{\sqrt{x^2-1}}\right)dx$

$\lim_{x\to0}\left(\frac{\tan\left(e^x-1\right)-e^x+1}{\left(e^x-1\right)^3}\right)$