There are 1 questions in this calculation: for each question, the 1 derivative of x is calculated.
    Note that variables are case sensitive.
\[ \begin{equation}\begin{split}[1/1]Find\ the\ first\ derivative\ of\ function\ abs + (3a{x}^{3} - 3b{x}^{3} - 6a{x}^{2} + 3b{x}^{2} + 3ax)\ with\ respect\ to\ x：\\\end{split}\end{equation} \]\[ \begin{equation}\begin{split}\\Solution:&\\ &Primitive\ function\ = abs + 3ax^{3} - 3bx^{3} - 6ax^{2} + 3bx^{2} + 3ax\\&\color{blue}{The\ first\ derivative\ function：}\\&\frac{d\left( abs + 3ax^{3} - 3bx^{3} - 6ax^{2} + 3bx^{2} + 3ax\right)}{dx}\\=&0 + 3a*3x^{2} - 3b*3x^{2} - 6a*2x + 3b*2x + 3a\\=&9ax^{2} - 9bx^{2} - 12ax + 6bx + 3a\\ \end{split}\end{equation} \]

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