$\frac{d^2}{dx^2}\left(x^5-2x^3+x\right)$

$\frac{1}{\:16}\left(\left(2sinx\right)+\left(sin3x\right)-\left(sin5x\right)\right)=\left(cos^2x\right)\left(sin^3x\right)$

$9 ( 5 v - 3 ) + 412 u + 5$

$\left(x\:-\:3\right)\:\left(x\:-\:1\right)\:\left(x\:+\:1\right)\:\left(x^2\:-\:2\right)\:=\:0$

$3x+1.5\left(2x+8\right)$

$x^2\left(\frac{dy}{dx}\right)-y\sqrt{x}=0$

$2\left(x+2\right)\left(6x-1\right)$