There are 1 questions in this calculation: for each question, the 1 derivative of x is calculated.
    Note that variables are case sensitive.
\[ \begin{equation}\begin{split}[1/1]Find\ the\ first\ derivative\ of\ function\ -3x*32(x + 1)*4 + 3x*22(x + 1)*3 - 9x*22(x + 1)*4 + 3x(x + 1)*3\ with\ respect\ to\ x：\\\end{split}\end{equation} \]\[ \begin{equation}\begin{split}\\Solution:&\\ &Primitive\ function\ = -969x^{2} - 969x\\&\color{blue}{The\ first\ derivative\ function：}\\&\frac{d\left( -969x^{2} - 969x\right)}{dx}\\=&-969*2x - 969\\=&-1938x - 969\\ \end{split}\end{equation} \]

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