Question

Simplify:
(p^-9)^-2

Answer 1

The rule for negative exponents:
Reciprocal of the base. Make the exponent positive.

Answer 2

Or use the rule for exponents of exponents.
(a^b)^c = a^(b*c)

Answer 3

\[=(p^{-9})^{-2}=\left(\frac {1}{p^{-9}}\right)^2 =(p^9)^2\]