$\left|+6\right|+\left|+6\right|$

$\log\left(x+6\right)-\log\left(x\right)=\log\left(x+2\right)$

$\frac{d}{dx}y=e^{3x^4}$

$\left(-\sqrt{3a+b}\right)^2$

$\lim_{x\to3}\left(\frac{\left(\tan\left(\pi x\right)-0\right)}{\left(x-3\right)}\right)$

$\frac{dy}{dx}\left(e^{2xy}+y^2=x^2+5\right)$

$\left(2x^2+7x-15\right)\left(3ax+4\right)=0$