$\frac{1}{\left(x^2-1\right)}+\frac{1}{\left(x-1\right)}$
$\frac{dy}{dx}=\frac{y}{x}-2x^2$
$\lim_{x\to-1}\left(10-x^2+\sqrt[2]{1-x}\right)$
$2\csc\left(2x\right)=\tan\left(x\right)+\cot\left(x\right)$
$\left(\frac{2}{3}m^2-a^3\right)^3$
$\sqrt[55]{1}$
$9x^2+4x-93$
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