Find the interval in which \( x^{2} e^{-x} \) is increasing \( \mat...

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Find the interval in which \( x^{2} e^{-x} \) is increasing
\( \mathrm{P} \)
(1) \( \quad(-\infty, \infty) \)
(2) \( \quad(-2,0) \)
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(3) \( (2, \infty) \)
(4) \( (0,2) \)
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