$\left(3x-1\right)^2-\left(3x+1\right)^2\:$
$10\left(3x-2\right)^{2}$
$\int_0^{e^{-x}}xydy$
$x^2+14x+112=0$
$6^2\:-\:\left(-8\right)$
$y^3+2y^2+2y$
$\left(a+2x\right)\left(2x-3a\right)+4ax+3a^2$
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