$x^2+12x-2=0$

$\left(7b-3\right)\left(7b+3\right)$

$2b\left(2\right)+3p\left(2\right)-8p\left(3\right)-6p\left(2\right)$

$\frac{dy}{dx}\left(\frac{\left(u-1\right)}{\left(u+1\right)}\right)\cdot\:u^2=\sqrt{x}$

$\left(\frac{e^3}{y^4}\right)^5$

$1-2-50$

$\left(3x+9\right)\left(x-5\right)\le0$