$9y^2+6y+1=0$
$121y^{10}-4x^8$
$a^2+11a+121$
$\frac{6x-1}{2}\le2x+\frac{x}{6}$
$-1-\frac{y}{1+x+2y}$
$4a^4+7a^3-3c^3+4+3-5a^3+1c^2-6a^6$
$5d-d$
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