$\left(9^7\:\:\right)\:^0\:x\:9$
$n^2+22n+121$
$\frac{\left(\left(x+3\right)\left(x-5\right)\left(x-7\right)\right)}{48}$
$88\cdot\left(-2\right)$
$x^2-2x-15>0$
$x^2-4x+7$
$8\left(-2d+2\right)+7d$
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