$\left(4\left(x+2\right)-3\left(x-5\right)\right)$
$-4x+x-1-5+5y-4$
$x-32515+61$
$\sin^2x\left(1-\cot^2x\right)$
$n^2-12n$
$\left(2b+1\right)\cdot\left(b+5\right)$
$\cos\left(x+244\right)$
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