There are 1 questions in this calculation: for each question, the 2 derivative of x is calculated.
    Note that variables are case sensitive.
\[ \begin{equation}\begin{split}[1/1]Find\ the\ second\ derivative\ of\ function\ 0.0007{x}^{3} - 0.0149{x}^{2} + 0.1615x + 28.188\ with\ respect\ to\ x：\\\end{split}\end{equation} \]\[ \begin{equation}\begin{split}\\Solution:&\\ &Primitive\ function\ = 0.0007x^{3} - 0.0149x^{2} + 0.1615x + 28.188\\&\color{blue}{The\ first\ derivative\ function：}\\&\frac{d\left( 0.0007x^{3} - 0.0149x^{2} + 0.1615x + 28.188\right)}{dx}\\=&0.0007*3x^{2} - 0.0149*2x + 0.1615 + 0\\=&0.0021x^{2} - 0.0298x + 0.1615\\\\ &\color{blue}{The\ second\ derivative\ of\ function:} \\&\frac{d\left( 0.0021x^{2} - 0.0298x + 0.1615\right)}{dx}\\=&0.0021*2x - 0.0298 + 0\\=&0.0042x - 0.0298\\ \end{split}\end{equation} \]

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