There are 1 questions in this calculation: for each question, the 1 derivative of x is calculated.
    Note that variables are case sensitive.
\[ \begin{equation}\begin{split}[1/1]Find\ the\ first\ derivative\ of\ function\ {(\frac{7}{3} - \frac{14x}{3})}^{2} + \frac{7{(\frac{-4}{3} + \frac{28x}{3})}^{2}}{2}\ with\ respect\ to\ x：\\\end{split}\end{equation} \]\[ \begin{equation}\begin{split}\\Solution:&\\ &Primitive\ function\ = \frac{980}{3}x^{2} - \frac{980}{9}x + \frac{35}{3}\\&\color{blue}{The\ first\ derivative\ function：}\\&\frac{d\left( \frac{980}{3}x^{2} - \frac{980}{9}x + \frac{35}{3}\right)}{dx}\\=&\frac{980}{3}*2x - \frac{980}{9} + 0\\=&\frac{1960x}{3} - \frac{980}{9}\\ \end{split}\end{equation} \]

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