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

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