$\frac{dy}{dx}=\frac{\left(y+3\right)\left(x-1\right)}{x\left(y-2\right)+4\left(y-2\right)}$

$b^2+7b=8$

$\frac{1}{4}\tan\left(\frac{2\pi}{8}\right)^2$

$\frac{1}{10}\left(10d+50-30d\right)$

$4+\frac{x+5}{x-4}>6+\frac{1}{x-4}$

$\lim_{x\to\infty}\left(\frac{e^{\sqrt{lnx}}}{x^5}\right)$

$\left(\:x+2\:\right)^3$