We are given the expression:
[tex]9^x[/tex]
It can be rewritten as:
[tex]9^x=(3^2)^x=3^{2x}[/tex]
It can also be converted to the following equivalent expression by using 9 = 3 x 3:
[tex]9^x=(3\cdot3)^x[/tex]
We can elaborate on the first equivalent expression:
[tex]3^{2x}=3^{x+x}=3^x\cdot3^x[/tex]
Thus, the equivalent expressions are: C, D, and F
