There are 1 questions in this calculation: for each question, the 1 derivative of x is calculated.
    Note that variables are case sensitive.
\[ \begin{equation}\begin{split}[1/1]Find\ the\ first\ derivative\ of\ function\ \frac{({x}^{2} - x - 2){e}^{1}}{xx}\ with\ respect\ to\ x：\\\end{split}\end{equation} \]\[ \begin{equation}\begin{split}\\Solution:&\\ &Primitive\ function\ = e - \frac{e}{x} - \frac{2e}{x^{2}}\\&\color{blue}{The\ first\ derivative\ function：}\\&\frac{d\left( e - \frac{e}{x} - \frac{2e}{x^{2}}\right)}{dx}\\=&0 - \frac{-e}{x^{2}} - \frac{0}{x} - \frac{2*-2e}{x^{3}} - \frac{2*0}{x^{2}}\\=&\frac{e}{x^{2}} + \frac{4e}{x^{3}}\\ \end{split}\end{equation} \]

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