$u^2+18u+81$
$\frac{1}{3}x+14=26$
$\:\int\:x^{-2}\left(2-\frac{2}{x}\right)dx$
$5\:.\:\left(5\:+\:5\right)\:-\:2\:-\:\left(3\:+\:5\right)$
$\left(1-2a^2\right)^3$
$\int\frac{\sqrt{x}}{\sqrt{x}-1}dx$
$\frac{d}{dx}6\left(3x^3+x^2\right)^3$
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