$2xy+7x^2y+xy^2$

$\frac{d}{dx}\left(\sqrt[9]{\frac{\left(x+2\right)}{\left(x+3\right)}}\right)$

$4x^2-6x+13$

$xy^3-\tan\left(x\right)y=xy$

$\int\frac{x^7}{\left(7-\left(3x^4\right)\right)^{\left(\frac{3}{2}\right)}}dx$

$\lim_{x\to\infty}\frac{8x^2+2x-5}{2x^2-x}$

$\left(3b-4\right)\left(b+2\right)$