$\:2^2+am+m^2$
$\frac{1}{cot^2}$
$\int x\:\cot\:^2\left(2x^2\right)dx$
$\int\frac{x+2}{x^2+4x+8}dx$
$x^2+x-110$
$\left(9m^9-5n\right)^2$
$4\left(2x^3-3x+2\right)$
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