$2x^3+4x^2+6x$
$\left(-120\right)\left(-4\right)$
$5^3\sqrt{729}$
$15+3n=48$
$-7+\log\left(x+7\right)=-4$
$2+5-1+5-2+2+3$
$3\:+\:2\:\cdot\:\left(18\:-\:4^2\:\right)$
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