$\int\:x^3e^{-x}dx$
$\left(\frac{u^2}{z^2}\right)\left(\left(\frac{3x^3u^{-1}}{z^{-2}}\right)^2\right)$
$b\left(x-15\right)\left(x+11\right)$
$8x^3+12x^2-2$
$\int_0^1te^{-1}dt$
$\frac{-702}{27}$
$2x^2-8x^4+14x^6$
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