Question

Click the image please...

Answer 1

`9^(-7), 9^(-2)`

Explanation:

`(9^5*9^(-9))/(9^3)\\(9^(-4))/(9^3)\\ 9^(-7)`

When you multiply like terms, you add their powers. When dividing like terms, you subtract their powers (subtract the power in the denominator from the one in the numerator).

`(9^4)^3*9^(-14)\\9^(12)*9^(-14)\\9^(-2)`