There are 1 questions in this calculation: for each question, the 1 derivative of m is calculated.
    Note that variables are case sensitive.
\[ \begin{equation}\begin{split}[1/1]Find\ the\ first\ derivative\ of\ function\ 22m - 2{m}^{2} - mn - 5\ with\ respect\ to\ m：\\\end{split}\end{equation} \]\[ \begin{equation}\begin{split}\\Solution:&\\ &Primitive\ function\ = 22m - 2m^{2} - nm - 5\\&\color{blue}{The\ first\ derivative\ function：}\\&\frac{d\left( 22m - 2m^{2} - nm - 5\right)}{dm}\\=&22 - 2*2m - n + 0\\=& - 4m - n + 22\\ \end{split}\end{equation} \]

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