$\left(9^9\right)^9$
$2tan2x-1=0$
$\left(x+1\right)+\left(x+2\right)\left(x-2\right)$
$4+23$
$y+6-2-4y^3-5y+2y^3-2y^3$
$3sin^2x-sinx-1=0$
$-43+\left|-37\right|$
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