$64b^2+48bc+9c^2$
$e^8=x$
$0.121212\:+\:3.1\:-\:\frac{20}{5}$
$\left(3m-9n\right)^3$
$x^{21}+y^3$
$\left(2x-1\right)\cdot\left(x^2+3\right)$
$\int\left(\frac{1}{sqrt\left(1+t^2\right)}\right)dt$
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