Q4: Simplify and write your answer in exponential form

3^2x3^9
Q5: Simplify the expression.
(- 3)^-5(- 3)^4
Q6: Simplify
(z^3)^4

Q4: The simplified form in exponential form is 3^11.

Q5: The simplified expression is (-3)^-1.

Q6: The simplified expression is z^12.