Question

Simplify the expression. write your answers using only positive exponents.

Answer 1

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