There are 1 questions in this calculation: for each question, the 2 derivative of x is calculated.
    Note that variables are case sensitive.
\[ \begin{equation}\begin{split}[1/1]Find\ the\ second\ derivative\ of\ function\ -e^{-4}x*6 + 0.0046x*5 - 0.0857x*4 + 0.7792x*3 - 3.5723x*2 + 7.3413x + 11.545\ with\ respect\ to\ x：\\\end{split}\end{equation} \]\[ \begin{equation}\begin{split}\\Solution:&\\ &Primitive\ function\ = -6xe^{-4} + 0.023x - 0.3428x + 2.3376x - 7.1446x + 7.3413x + 11.545\\&\color{blue}{The\ first\ derivative\ function：}\\&\frac{d\left( -6xe^{-4} + 0.023x - 0.3428x + 2.3376x - 7.1446x + 7.3413x + 11.545\right)}{dx}\\=&-6e^{-4} - 6xe^{-4}*0 + 0.023 - 0.3428 + 2.3376 - 7.1446 + 7.3413 + 0\\=&-6e^{-4} + 2.2145\\\\ &\color{blue}{The\ second\ derivative\ of\ function:} \\&\frac{d\left( -6e^{-4} + 2.2145\right)}{dx}\\=&-6e^{-4}*0 + 0\\=&0\\ \end{split}\end{equation} \]

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