$\left(x^3n+2\right)\:\left(\:x^3n-2\right)$

$2x^2+8x\:+3=0$

$\frac{d}{dx}\left(7-x=cos\left(y\right)+\frac{y^3}{2}\right)$

$\frac{9b^2y}{27by}$

$\int_{0.5}^1\left(\frac{\arccos\left(\sqrt{x}\right)}{\sqrt{x}}\right)dx$

$\left(3x-9y^5\right)\left(5x+3y^2\right)$

$am-an+ap$