$\int\left(\frac{1}{cos^2\:x}\right)dx$
$\left(\frac{1}{2}x^3+3x^2-2\right).\left(\frac{1}{2}x^3+3x^2-2\right)$
$\left(\left(x-2\right)+x^2\right)\left(\left(x-2\right)-x^2\right)$
$\frac{dy}{dx}\left(x=2y^2+y+4\right)$
$\frac{x}{x-1}\:-2<8$
$6x^2+3y^2=12$
$\left(z^{-1}+1\right)^3$
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