$\left(x\:+\:3y\right)^0$
$x^2+4x>0$
$x^2-x-156$
$\left(x\:-\:76\right).\left(x\:+\:67\right)$
$2x-8\ge7x-16$
$xy+5=0$
$\frac{2a^4b^2}{7a^3b^2}$
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