$x+10+100$
$3-2^2\cdot4-2-2\cdot4^2$
$y^5-7y^4+12y^3+8y^2=0$
$\frac{2x^2+17x+16}{x+7}$
$\frac{d}{dx}y=\sqrt{\frac{x}{x-3}}$
$\frac{d^2}{dx^2}\left(2+\frac{1}{x}\right)$
$\frac{9\cot\:\left(a\right)-9}{1+\tan\:\left(-a\right)}$
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