$\int\left(3+x-3x^2\right)e^{2x}\:dx$
$4^2+12^1$
$53m^2n^3x+110m^2n^3x^2-220m^2y^3$
$2x+20=-30$
$\left(-1-x\right)^2\cdot\left(1-x\right)$
$\frac{1}{2}\left(8x+1\right)\ge\:3x+\frac{5}{2}$
$49x^2+42xy+9y^2$
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