There are 1 questions in this calculation: for each question, the 1 derivative of x is calculated.
    Note that variables are case sensitive.
\[ \begin{equation}\begin{split}[1/1]Find\ the\ first\ derivative\ of\ function\ 18{x}^{3}{(18 - x)}^{4}\ with\ respect\ to\ x：\\\end{split}\end{equation} \]\[ \begin{equation}\begin{split}\\Solution:&\\ &Primitive\ function\ = 18x^{7} - 1296x^{6} + 34992x^{5} - 419904x^{4} + 1889568x^{3}\\&\color{blue}{The\ first\ derivative\ function：}\\&\frac{d\left( 18x^{7} - 1296x^{6} + 34992x^{5} - 419904x^{4} + 1889568x^{3}\right)}{dx}\\=&18*7x^{6} - 1296*6x^{5} + 34992*5x^{4} - 419904*4x^{3} + 1889568*3x^{2}\\=&126x^{6} - 7776x^{5} + 174960x^{4} - 1679616x^{3} + 5668704x^{2}\\ \end{split}\end{equation} \]

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