$22+1+7$

$-\left[-5+\left(4-1\right)\right]-\left\{-2-\left[8-\left(3+2\right)\right]+\left(5+9\right)-\left(-3\right)\right\}$

$\frac{d^4}{dx^4}\left(2\left(2x-3\right)^{-1}\right)$

$-3\:-\:\left(-4\right)\:\cdot\:\left[2\:\cdot\:\left(-6\right)\right]$

$\frac{d}{dx}\left(x\right)=\frac{d}{dx}\sin\left(y\right)$

$\sqrt{4}^2$

$5\:x\:+12>\:\:1$