$-8\left(-4+6-3\right)+\left[5\left(-10-2+10\right)-5\left(-7\right)\right]$
$x\left(x+1\right)^2\left(x-1\right)$
$\left(3-\sqrt{17-13}\right)^2+\sqrt{7+\left(11-8\right)}^2$
$3x^2+x-2=0$
$57^2$
$4x+7\left(x-1\right)$
$x-20=50$
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