Gaokao Math Practice Question
若 $x=-2$ 是函数 $f(x)=\left(x^{2}+a x-1\right) e^{x-1}$ 的极值点, 则 $f(x)$ 的极 小值为($\qquad$)
- A.-1
- B.$-2 e^{-3}$
- C.$5 e^{-3}$
- D.1
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