SOLUTION
The given function is:
[tex]f(x)=(1.25^{\frac{x}{4}})^{16}[/tex]
This is simplified to give:
[tex]\begin{gathered} f(x)=1.25^{\frac{x}{4}\cdot16} \\ f(x)=1.25^{4x} \end{gathered}[/tex]
Therefore the equivalent form is:
[tex]f(x)=1.25^{4x}[/tex]
