$x^3-6x^2+9x-4$
$-199+-325$
$\int\frac{-5t}{t^2+4}dt$
$\left(\sqrt{\left(\csc\left(x\right)^2\right)-2\cot\left(x\right)}\right)+\cot\left(x\right)=1$
$4\left(-2-4+16\right)$
$4m^2-8m+8>0$
$-2\cdot0+3$
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