$x^{\frac{2}{3}}-3-\frac{1}{16x^{\frac{2}{3}}}$

$9ab^2\left(\frac{1}{3}a^{-1}b-2ab^{-2}\right)$

$\lim_{x\to\infty}\left(\frac{x+2}{x}\right)^{\left(x+1\right)}$

$4x^2-12x+4$

$\int\left(\sqrt{3-x^2}\left(3x^2\right)\right)dx$

$\left(n^3+4\right)\left(n^y+4\right)$

$\left(2x^3+\frac{1}{3}y\right)^2$