$64-240+2625-1536-3000$
$\frac{\left(z^2-3z^3+27-4z+4\right)}{z-1}$
$x\left(x+20\right)$
$\frac{3-2x}{3}$
$25m^2+30m+9$
$9y^2-9x^2$
$\int x ^ { 2 } e ^ { x ^ { 3 } - 1 } d x$
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