There are 1 questions in this calculation: for each question, the 1 derivative of x is calculated.
    Note that variables are case sensitive.
\[ \begin{equation}\begin{split}[1/1]Find\ the\ first\ derivative\ of\ function\ 1 - (xx*3 - xxx)e^{-x + 1}\ with\ respect\ to\ x：\\\end{split}\end{equation} \]\[ \begin{equation}\begin{split}\\Solution:&\\ &Primitive\ function\ = - 3x^{2}e^{-x + 1} + x^{3}e^{-x + 1} + 1\\&\color{blue}{The\ first\ derivative\ function：}\\&\frac{d\left( - 3x^{2}e^{-x + 1} + x^{3}e^{-x + 1} + 1\right)}{dx}\\=& - 3*2xe^{-x + 1} - 3x^{2}e^{-x + 1}(-1 + 0) + 3x^{2}e^{-x + 1} + x^{3}e^{-x + 1}(-1 + 0) + 0\\=& - 6xe^{-x + 1} + 6x^{2}e^{-x + 1} - x^{3}e^{-x + 1}\\ \end{split}\end{equation} \]

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