$\left(\frac{1}{2}x+\frac{1}{3}\right)^3$
$x^{2}+3x+2>0$
$\left(-3x+3x^2\right)+\left(-3x^2\right)$
$\frac{\left(sec^2\left(x\right)-1\right)}{tan\left(x\right)}$
$\frac{d}{dx}x+y+2\sin xy$
$\left(11z+9y\right)\left(11z-9y\right)$
$\cos x-\sin x\tan x$
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