$\left(-23m^2n^2\right)-\left(-32m^2n^2\right)$

$-x^2+4x-6=0$

$6\left(5x+1\right)$

$\frac{dy}{dx}\left(x^2-y^2+\sin\left(x^2-y^2+1\right)\right)$

$1-\frac{1}{1}$

$\left(x+h\right)\left(x+h\right)\left(x+h\right)\left(x+h\right)$

$\frac{d}{dx}\left(\cos\left(8x\right)\cdot\sin\left(4x^2\right)\right)$