$2x+9>21$
$\left(-80\right)^0$
$\left(\frac{sin\left(x\right)+sin\left(x\right)^2}{cos\left(x\right)+sin\left(x\right)cos\left(x\right)}\right)$
$-21-200$
$-\left|x\right|-23$
$467^0$
$6x^2-116x+412=3x^2-68x-220$
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