$4x-1=11$
$\left(2x+5\right)\cdot\left(3x+2\right)$
$x^2-x+72$
$34+1+21$
$4w\:-\:6\:-\:9w\:+\:3$
$6a-5a^2b$
$4\left(3+7y\right)+6\left(2-y\right)$
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