$57-\left[43+2\right]$
$\frac{x^3-8}{x+2}$
$x^{2\:}-11x\:+\:30\frac{1}{4}$
$\cos^2\left(x\right)=\cot\left(x\right)$
$4x^2+36x+9$
$9ab\:-\:\left(-\:8ab\right)\:$
$\int\left(4x^3\sqrt{4x+7}\right)dx$
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