There are 1 questions in this calculation: for each question, the 2 derivative of x is calculated.
    Note that variables are case sensitive.
\[ \begin{equation}\begin{split}[1/1]Find\ the\ second\ derivative\ of\ function\ -0.00003{x}^{3} + 0.00006{x}^{2} + 0.0123x + 22.248\ with\ respect\ to\ x：\\\end{split}\end{equation} \]\[ \begin{equation}\begin{split}\\Solution:&\\ &Primitive\ function\ = -0.00003x^{3} + 0.00006x^{2} + 0.0123x + 22.248\\&\color{blue}{The\ first\ derivative\ function：}\\&\frac{d\left( -0.00003x^{3} + 0.00006x^{2} + 0.0123x + 22.248\right)}{dx}\\=&-0.00003*3x^{2} + 0.00006*2x + 0.0123 + 0\\=&-0.00009x^{2} + 0.00012x + 0.0123\\\\ &\color{blue}{The\ second\ derivative\ of\ function:} \\&\frac{d\left( -0.00009x^{2} + 0.00012x + 0.0123\right)}{dx}\\=&-0.00009*2x + 0.00012 + 0\\=&-0.00018x + 0.00012\\ \end{split}\end{equation} \]

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