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

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