Question

Hello, I need some assistance with this homework question please for precalculusHW Q28

Answer 1

Given:

`5^(-x)=125`

Find-: The solution of expression.

Sol:

`\begin{gathered} 5^(-x)=125 \\ \end{gathered}`

125 is 5 power of 3 then:

`\begin{gathered} 5^(-x)=125 \\ \\ 5^(-x)=5^3 \end{gathered}`

So, the value of "x" is:

`\begin{gathered} 5^(-x)=5^3 \\ \\ -x=3 \\ \\ x=-3 \end{gathered}`

The value of "x" is -3.