$4x+6\ge2x-3$
$-2x+1-2x+4$
$\left(2a^2b^3+10\right)\left(6a^2b^3-12\right)$
$\left(a^2+b\right)^7$
$2-78$
$\left|6+\left(x+1\right)\right|^2$
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