$4x-16y$
$24z^2+72z^2+54z$
$\left(2-2u+3w\right)\left(-5\right)$
$\lim_{x\to-1}\left(x-3\right)$
$-4a+4$
$-5\::\:-5$
$1326=2x^2+24x+340$
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