$4\:-\:12y\:+\:9y^2$
$\lim_{x\to10}\left(\frac{\sqrt{1+x^2}-1}{\sqrt{1-x^2}-1}\right)$
$\frac{cos\left(x\right)}{csc\left(x\right)-sin\left(x\right)}$
$\int\left(2-x^5\right)^2dx$
$\frac{2x^2+4x-3}{2}$
$\left(2ab-b^2\right)^2$
$x^2+2x-8<0$
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