$-4\left(2a+7\right)+3a+18$
$\left(3m+\:2v\right)^2$
$7x<0$
$\left(-3+bx^2\right)\left(3+bx^2\right)$
$x^6-256$
$36^2-24+16$
$\:\:\:-164-\left[-59\right]$
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