$x^2y+4xy^2^2$

$\frac{2}{3}log\left(x+1\right)-2log\left(x+1\right)$

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

$\left(e^x-1\right)^3$

$-y^2=y-2$

$\left\{14\left(\frac{1}{7}z^9-\frac{1}{2}\right)\right\}^2$

$\int_{28}^{\infty}\frac{1}{\sqrt{x-9}}dx$