$\log_{10}\left(x\right)+\log_{10}\left(6\right)=\log_{10}\left(42\right)$

$\left(x-1\right)\left(2x-1\right)\left(x\right)$

$\frac{d}{dx}\left(\ln\left(x^3y^2\right)=5y+4\right)$

$\frac{6-x^2}{x}$

$\frac{dy}{dx}=-\frac{y^4}{x^4-xy^3}$

$\left(2+\sqrt{y}\right)\left(2-\sqrt{y}\right)bz$

$2x-y=12$