There are 1 questions in this calculation: for each question, the 2 derivative of x is calculated.
    Note that variables are case sensitive.
\[ \begin{equation}\begin{split}[1/1]Find\ the\ second\ derivative\ of\ function\ 2209.4609{X}^{2} + 148977.36 + 12357.035{(\frac{9442.2X}{(599.6X - 1568.1)})}^{2}\ with\ respect\ to\ x：\\\end{split}\end{equation} \]\[ \begin{equation}\begin{split}\\Solution:&\\ &Primitive\ function\ = 2209.4609X^{2} + \frac{1101693195789.81X^{2}}{(599.6X - 1568.1)(599.6X - 1568.1)} + 148977.36\\&\color{blue}{The\ first\ derivative\ function：}\\&\frac{d\left( 2209.4609X^{2} + \frac{1101693195789.81X^{2}}{(599.6X - 1568.1)(599.6X - 1568.1)} + 148977.36\right)}{dx}\\=&0 + \frac{1101693195789.81(\frac{-(0 + 0)}{(599.6X - 1568.1)^{2}})X^{2}}{(599.6X - 1568.1)} + \frac{1101693195789.81(\frac{-(0 + 0)}{(599.6X - 1568.1)^{2}})X^{2}}{(599.6X - 1568.1)} + 0 + 0\\=&0\\\\ &\color{blue}{The\ second\ derivative\ of\ function:} \\&\frac{d\left( 0\right)}{dx}\\=&0\\ \end{split}\end{equation} \]

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