$n^2+17n+72$
$\frac{dy}{dx}=x\sqrt{-x-1}$
$-4+5\left(-4+2\right)-6-3\cdot\left(2-4\right)$
$\left(3a^4b^4+2a^2b^3\right)^2$
$m^2-4m-91=0$
$x^2+22x+120$
$\left(x^2\cdot sen^2x\right)$
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