There are 1 questions in this calculation: for each question, the 2 derivative of x is calculated.
    Note that variables are case sensitive.
\[ \begin{equation}\begin{split}[1/1]Find\ the\ second\ derivative\ of\ function\ 0.0015{x}^{3} - 0.039{x}^{2} + 0.3805x + 27.887\ with\ respect\ to\ x：\\\end{split}\end{equation} \]\[ \begin{equation}\begin{split}\\Solution:&\\ &Primitive\ function\ = 0.0015x^{3} - 0.039x^{2} + 0.3805x + 27.887\\&\color{blue}{The\ first\ derivative\ function：}\\&\frac{d\left( 0.0015x^{3} - 0.039x^{2} + 0.3805x + 27.887\right)}{dx}\\=&0.0015*3x^{2} - 0.039*2x + 0.3805 + 0\\=&0.0045x^{2} - 0.078x + 0.3805\\\\ &\color{blue}{The\ second\ derivative\ of\ function:} \\&\frac{d\left( 0.0045x^{2} - 0.078x + 0.3805\right)}{dx}\\=&0.0045*2x - 0.078 + 0\\=&0.009x - 0.078\\ \end{split}\end{equation} \]

Your problem has not been solved here? Please take a look at the  hot problems ！