$2\left(x-3\right)-16=2x+1$
$7+\left(3-1\right)^2$
$2\left(q-p+2\right)\left(p-4\right)\left(q+2\right)$
$m\:+\:2m\:+\:1$
$-5\left(\cot^2\right)x-\csc^2$
$\left(12b^2-48b+12b^2-b^3\right)$
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