There are 1 questions in this calculation: for each question, the 1 derivative of x is calculated.
    Note that variables are case sensitive.
\[ \begin{equation}\begin{split}[1/1]Find\ the\ first\ derivative\ of\ function\ -2x(x*2 + 1)*2\ with\ respect\ to\ x：\\\end{split}\end{equation} \]\[ \begin{equation}\begin{split}\\Solution:&\\ &Primitive\ function\ = -8x^{2} - 4x\\&\color{blue}{The\ first\ derivative\ function：}\\&\frac{d\left( -8x^{2} - 4x\right)}{dx}\\=&-8*2x - 4\\=&-16x - 4\\ \end{split}\end{equation} \]

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