$4x^2-12x-9$
$963.4+1.23+82.37$
$\frac{d}{dx}3^{3x}$
$\left(3a^2-4y+z\right)^2$
$\frac{8-z}{5}-\frac{8-z}{5}$
$3x^2+9x-54$
$-2\left(p-4\right)+7>1$
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