Respuesta :

[tex]\begin{gathered} 4. \\ \frac{5^6}{5}=5^6\cdot5^{-1}=5^{6-1}=5^5 \end{gathered}[/tex][tex]\begin{gathered} 5. \\ \\ 4^{-3}\cdot4^5=4^{-3+5}=4^2 \end{gathered}[/tex][tex]\begin{gathered} 6. \\ (w^5)^7=w^{5\cdot7}=w^{35} \end{gathered}[/tex][tex]\begin{gathered} 7. \\ (-5z)^3=(-5)^3(z)^3=-125z^3 \end{gathered}[/tex]

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