$4t^2-3t+9=0$
$\frac{\sin^2\theta-2\sin\theta+1}{\sin\theta-1}$
$\frac{64x^8y^4z^5}{80x^6y^8z^3}$
$\frac{d}{dx}xcos\left(y\right)+sin\left(x\right)y=4$
$4z^3-\:5z^2=\:0\:\:$
$\left(3+5i\right)^3$
$\left(4-7x\right)^2$
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