I know math but I'm only average. According to my head:
I think you can't answer that....
$${\frac{{{\mathtt{x}}}^{{\mathtt{3}}}}{{{\mathtt{x}}}^{-{\mathtt{2}}}}} = {\frac{{{\left(\underset{{\tiny{\text{Error: Unknown Identifier}}}}{{\mathtt{x}}}\right)}}^{{\mathtt{3}}}}{{{\left(\underset{{\tiny{\text{Error: Unknown Identifier}}}}{{\mathtt{x}}}\right)}}^{-{\mathtt{2}}}}}$$
or
$${\frac{{\frac{{{\mathtt{x}}}^{{\mathtt{3}}}}{{\mathtt{1}}}}}{{\mathtt{x}}}} = {\frac{{\frac{{{\left(\underset{{\tiny{\text{Error: Unknown Identifier}}}}{{\mathtt{x}}}\right)}}^{{\mathtt{3}}}}{{\mathtt{1}}}}}{\underset{{\tiny{\text{Error: Unknown Identifier}}}}{{\mathtt{x}}}}}$$
Therefore, you cannot answer that without any given values..