$\frac{x^2-3x-3}{x+2}$
$\sqrt{6x-3-1}$
$2y+5=45$
$x^2+10x+5=30$
$\left(a^9\right)\left(a\right)$
$\frac{x^2-2x-13}{x+3}$
$x^2+81x+1620$
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