$u^2-4u+-4$
$\int\cos\left(8x\right)\sin\left(6x\right)dx$
$45+9n+6$
$m^2\:+\:2m\:+\:1\:=0$
$78x+\left(1^{13}\right)$
$2^{-3}+2^2$
$\left(n^3+9\right)\left(n^3-13\right)$
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