Given:
[tex]\log (5k+4)=8r[/tex]
To find:
The exponential form of given equation.
Solution:
We have,
[tex]\log (5k+4)=8r[/tex]
According to the property of the logarithm,
[tex]\log_ax=y\Rightarrow x=a^y[/tex]
Using the above property of the logarithm, we get
[tex]5k+4=10^{8r}[/tex]
Therefore, the required equation in exponential form is [tex]5k+4=10^{8r}[/tex].