Question

X to the 9th power over x to the 4th power.

Answer 1

x^9/ x^4 = x^9-4 = x^5
This property is called the quotient of powers property.

*Hope that helps :)

Answer 2

Since it is division, you can subtract 9 by 4 and put the same base on the result.  The answer would be x to the 5th power.