$\frac{1}{x-1}<\frac{1}{x+1}$
$\frac{dy}{dx}\left(4y^2=2x^2y^3+2x^3-x^2y^2\right)$
$xy^2\frac{dy}{dx}=2+y$
$6+\left(-7\right)+\left(-8\right)+4-2$
$\left(9+\sqrt{5}i\right)^3$
$\left(3x^3\right)\left(4x^5\right)$
$\int\:\frac{\left(t^2-2t^4\right)}{t^4}\:dt$
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