$\left(3xy\right)\left(4^2y^3\right)$

$2x^2-12x-80$

$\left(5m^6\right)^2$

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

$\lim_{x\to\infty}\left(\frac{\sqrt{4x^4+x-3}}{4x^9-33}\right)$

$\left(\frac{1}{p}\right)^2$

$-\left\{-3+\left[-3+8-\left(-7+4\right)-5\right]+6\right\}$