Write the expression $p^{-2}$p−2 in positive exponential form.
Express $a^{-8}$a−8 with a positive exponent.
Simplify $\frac{1}{a^{-n}}$1a−n.
Write $\frac{a^{-n}}{b^{-m}}$a−nb−m without negative exponents.
Rewrite expressions involving radicals and rational exponents using the properties of exponents.