Respuesta :
Answer:
[tex]f(x)=5(8)^{x}[/tex]
Step-by-step explanation:
The given expression is [tex]f(x)=5(2)^{3x}[/tex]
So, to know what expression is equivalent, we just have to rewrite the given functions:
[tex]f(x)=5(2)^{3x}\\f(x)=5(2^{3})^{x} \\f(x)=5(8)^{x}[/tex]
Therefore, the right answer is the last one:
[tex]f(x)=5(8)^{x}[/tex]