$\frac{2x^3-3x^2-7}{x+1}$

$\int\frac{2.2e^{0.67t}}{13+e^{0.67t}}dx$

$\lim_{x\to\frac{\pi}{4}}\left(\frac{7tan\left(x\right)-7cot\left(x\right)}{4x-\pi}\right)$

$\frac{4}{3}x^3y\cdot\frac{3}{4}x^2-\frac{1}{3}y^2+6xy$

$\frac{2x^2+8x+6}{2x+2}$

$\left(\:x\:+\:4\:\right)\left(\:x\:-\:4\:\right)$

$\sqrt{16}-\sqrt[3]{1000}$