$\int\frac{1}{\left(x+1\right)^2+16}dx$
$3x+6y+9$
$8x-4x+2x-x$
$y^3+3y^2-4$
$cosx\left(tanx+secx\right)$
$x^2-x-156$
$\lim_{x\to2}\left(3x^2+2\right)$
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