$2x^2-8x-24=0$
$\left(-4\right)^2\left(-4\right)^3$
$x^2-23x+132$
$\lim_{x\to b}\left(\frac{\left(x-b\right)\left(2x+a\right)}{x+b}\right)$
$t^2+t-2$
$\lim_{x\to0}\left(\frac{1}{x+1}\right)$
$\frac{3y^{-1}}{4yx^3}$
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