There are 1 questions in this calculation: for each question, the 8 derivative of x is calculated.
    Note that variables are case sensitive.
\[ \begin{equation}\begin{split}[1/1]Find\ the\ 8th\ derivative\ of\ function\ ({x}^{2})ln(1 + {x}^{2})\ with\ respect\ to\ x：\\\end{split}\end{equation} \]\[ \begin{equation}\begin{split}\\Solution:&\\ &Primitive\ function\ = x^{2}ln(x^{2} + 1)\\\\ &\color{blue}{The\ 8th\ derivative\ of\ function:} \\=&\frac{-4623360x^{6}}{(x^{2} + 1)^{6}} + \frac{2257920x^{4}}{(x^{2} + 1)^{5}} - \frac{413280x^{2}}{(x^{2} + 1)^{4}} + \frac{4055040x^{8}}{(x^{2} + 1)^{7}} - \frac{1290240x^{10}}{(x^{2} + 1)^{8}} + \frac{13440}{(x^{2} + 1)^{3}}\\ \end{split}\end{equation} \]

Your problem has not been solved here? Please take a look at the  hot problems ！