$3x^2+4x+7-2x^2+5x-3$
$w-12w+4w^2$
$36x^{14}-1$
$2x+2x+\left(x+2\right)+\left(x+2\right)$
$4x+2=26$
$-x+5<0$
$\tan^2a+1=-3\sqrt{3}^2$
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