$t^2+8t+9=0$
$\int\frac{5x-4}{\left(x+3\right)\left(x-2\right)}dx$
$5-\left(-16\right)$
$-6x^2-8x+9$
$n^2-10n-11$
$\frac{d^2}{dx^2}\left(-\cot\left(x\right)\right)$
$2^a-3b-5^a-6b+7^a-8b$
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