$\lim_{x\to0}\left(\frac{15x-5sin\left(3x\right)}{1-cos\left(9x\right)}\right)$
$3x^4-4x^2+1$
$\frac{dy}{dx}=\frac{2x^2}{3y^2}$
$\int-4x^2e^xdx$
$\left(z^3x^2\right)^{12}$
$( 2 + g ) ( 4 - 2 g + g ^ { 2 } )$
$4m\:-\:5m\:-\:6m\:+\:8m$
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