There are 1 questions in this calculation: for each question, the 1 derivative of x is calculated.
    Note that variables are case sensitive.
\[ \begin{equation}\begin{split}[1/1]Find\ the\ first\ derivative\ of\ function\ x - 4{x}^{\frac{1}{2}} + 2\ with\ respect\ to\ x：\\\end{split}\end{equation} \]\[ \begin{equation}\begin{split}\\Solution:&\\ &Primitive\ function\ = x - 4x^{\frac{1}{2}} + 2\\&\color{blue}{The\ first\ derivative\ function：}\\&\frac{d\left( x - 4x^{\frac{1}{2}} + 2\right)}{dx}\\=&1 - \frac{4*\frac{1}{2}}{x^{\frac{1}{2}}} + 0\\=& - \frac{2}{x^{\frac{1}{2}}} + 1\\ \end{split}\end{equation} \]

Your problem has not been solved here? Please take a look at the  hot problems ！