Answer :

pandu444
The answer is y/18.
Panoyin
9. [tex](y^{-3})^{6}[/tex]
    [tex](\frac{1}{y^{3}})^{6}[/tex]
    [tex]\frac{1}{y^{18}}[/tex]

10. [tex](-h^{4})^{5}[/tex]
      [tex]-h^{20}[/tex]

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