$x^2+12x+11=0$
$2x-1>7$
$\int\frac{\sqrt{9-x}^2}{x^2}\:dx$
$12x^2-9x=0$
$\left(-2t^2+t-7\right)+\left(5t^2+6t+4\right)$
$\frac{\left(a^3-37a-1\right)}{a-6}$
$-64-\left(56-72:8\right)$
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