$\left[3\left(a-b\right)+5\right]\left[3\left(a-b\right)-5\right]$
$\left|5\right|$
$w^2-4$
$x^2-1<x-3$
$\left(6-2a\right)^3$
$-8-4\left(10+3y\right)$
$\left(6x+1^2\right)$
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