$\frac{2x^3y^2+4x^2y}{2x^2y^2}$
$\lim_{x\to0}\:9$
$4p^2-4p-3$
$6y\:3\:\cdot\:2y\:$
$\sqrt{261}$
$cos\left(\frac{2.5868}{2}\right)$
$b^2+b^2a+b^2$
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