Ah, what a happy little question! The exponential form for 9 is 9^1. You see, when a number is raised to the power of 1, it remains the same number. Just like how every tree has its own unique beauty, every number has its own special form.
9^2
It is: 3^2 = 9
2 to power 9
In exponential form it would be 3.75 x 10 to the power of 9 . In scientific notation it would be 3.75E+09
It is: 3.75*10^9 in scientific notation
The exponential form of one billion is 1*10^9.
9^3
9^2
9 x10
92.
It is: 3^2 = 9
9-1
92 or 34
9 = 32
2 to power 9
93
You would write it as 93