$33x^2-x-2=0$
$6x^2+3x\ge3+2x^2$
$-5+\left(-2\right)\left(7\right)-\left(-3\right)\left(8\right)$
$4x^2-\frac{1}{25}z^2$
$8x^6+27y^9$
$\left(x^2+y^3+8\right)^2$
$20m^2n^2\:-\:60mnp\:+\:45p^2$
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