There are 1 questions in this calculation: for each question, the 1 derivative of x is calculated.
    Note that variables are case sensitive.
\[ \begin{equation}\begin{split}[1/1]Find\ the\ first\ derivative\ of\ function\ (2sqrt(5) - sqrt(2))(sqrt(20) + 2)\ with\ respect\ to\ x：\\\end{split}\end{equation} \]\[ \begin{equation}\begin{split}\\Solution:&\\ &Primitive\ function\ = 2sqrt(5)sqrt(20) - sqrt(2)sqrt(20) + 4sqrt(5) - 2sqrt(2)\\&\color{blue}{The\ first\ derivative\ function：}\\&\frac{d\left( 2sqrt(5)sqrt(20) - sqrt(2)sqrt(20) + 4sqrt(5) - 2sqrt(2)\right)}{dx}\\=&2*0*\frac{1}{2}*5^{\frac{1}{2}}sqrt(20) + 2sqrt(5)*0*\frac{1}{2}*20^{\frac{1}{2}} - 0*\frac{1}{2}*2^{\frac{1}{2}}sqrt(20) - sqrt(2)*0*\frac{1}{2}*20^{\frac{1}{2}} + 4*0*\frac{1}{2}*5^{\frac{1}{2}} - 2*0*\frac{1}{2}*2^{\frac{1}{2}}\\=& - \frac{0}{2}\\ \end{split}\end{equation} \]

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