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

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