$\frac{-2x-6}{1x+1}$

$\left(\:x\:+\:2\:\right)\left(\:x\:-\:9\:\right)\:$

$\lim_{x\to-24}\left(\frac{sqrt\left(x^2+49\right)-25}{x-24}\right)$

$\ln\left(1-3y\right)^{\frac{1}{3}}=\frac{x^3}{3}$

$\left[\frac{0.33+1.33}{0.55\times5}\right]^2\times\frac{25}{9}+\left(\frac{1}{2}\right)^{-1}$

$\lim_{x\to5}\left(\frac{x^3-4x^2-5x}{x^2+x-20}\right)$

$8q^3r^4s^5-24q^2r^3s^4+48qr^4s^3$