$\log\left(x-7\right)+\log\left(x\right)=\log\left(18\right)$

$\sqrt{18m^2n^3}+m\sqrt{32n^3}-5\sqrt{2m^2n^3}$

$\frac{dy}{dx}\left(\sec^2\left(x\right)+\csc^2\left(y\right)=4\right)$

$\frac{d}{dx}\sqrt{5+y^2}-x^3+5=0$

$\left(34-2x\right)$

$\frac{24m^6n^{-5}}{6n^{-2}m}$

$8\cos x-3=1$