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

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