$\lim_{x\to\frac{1}{2}}\left(4x+1\right)\left(6x-1\right)$
$3-2x\ge7$
$2^3a^6$
$\left(w\:x\right)^5\:w^4\:x^4\:w^5$
$0x^{2}y-15xy^{2}+25xy$
$uv\left(2u^{-1}v^{-2}\right)^2$
$150-1296$
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