There are 1 questions in this calculation: for each question, the 6 derivative of x is calculated.
    Note that variables are case sensitive.
\[ \begin{equation}\begin{split}[1/1]Find\ the\ 6th\ derivative\ of\ function\ -6x*6 + 15x*5 + 9x*4 - 3x*3 - 15x*2 - 16x*4\ with\ respect\ to\ x：\\\end{split}\end{equation} \]\[ \begin{equation}\begin{split}\\Solution:&\\ &Primitive\ function\ = -28x\\\\ &\color{blue}{The\ 6th\ derivative\ of\ function:} \\=&0\\ \end{split}\end{equation} \]

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