There are 1 questions in this calculation: for each question, the 2 derivative of x is calculated.
    Note that variables are case sensitive.
\[ \begin{equation}\begin{split}[1/1]Find\ the\ second\ derivative\ of\ function\ 0.812{x}^{2} + 0.337\ with\ respect\ to\ x：\\\end{split}\end{equation} \]\[ \begin{equation}\begin{split}\\Solution:&\\ &Primitive\ function\ = 0.812x^{2} + 0.337\\&\color{blue}{The\ first\ derivative\ function：}\\&\frac{d\left( 0.812x^{2} + 0.337\right)}{dx}\\=&0.812*2x + 0\\=&1.624x\\\\ &\color{blue}{The\ second\ derivative\ of\ function:} \\&\frac{d\left( 1.624x\right)}{dx}\\=&1.624\\ \end{split}\end{equation} \]

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