$m^2+30m+2$
$121x^4+44x^2y+4y^2$
$14+x=18$
$\lim_{x\to0}\left(\frac{x-1}{ln\:\left(x\right)}\right)$
$\int\frac{e^x}{\left(e^{2x}+1\right)\left(e^x-5\right)}dx$
$\frac{dx}{dy}=\frac{2x-4}{3y-2}$
$x^{-1}2x$
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