Answer:
[tex]\frac{-20}{p^{6} c^{4} }[/tex]
Step-by-step explanation:
[tex]-5 p^{-6} (4) c^{-4} = \frac{-5 (4)}{p^{6} c^{4} } = \frac{-20}{p^{6} c^{4} }[/tex]
