$\left(8x^{-3}-2y^5\right)^2$
$3x+9y-4z+5x-6y+8z+12x-14y+13z$
$\int\frac{e^{y}}{e^{y}+3}dy$
$\frac{\sqrt{98}}{7}$
$\frac{sec}{1+tan2}$
$\:lnx^2\:=\:2lnx$
$q+9q+10+8-9q$
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