$\frac{1}{16}\int_0^{10}x^2e^{-\frac{x}{4}}dx$

$\frac{x^5-x^4+x^2-2}{3x^2-7x}$

$-\:3x\:+\:9x\:-\:2x$

$\lim_{x\to-\infty}\left(e^{2x}-e^x\right)$

$\left(4x-x^2+2\right)^2$

$\lim_{u\to infinity}\left(\frac{2u}{e^u-1}\right)$

$\left|\left(-8\right)\:\cdot\:\left(-3\right)\right|^{25}$