Question

Which is the simplified form of (9c^-9)^-3

Answer 1

$\bf ~~~~~~~~~~~~\textit{negative exponents}\\\\ a^{-n} \implies \cfrac{1}{a^n} \qquad \qquad \cfrac{1}{a^n}\implies a^{-n} \qquad \qquad a^n\implies \cfrac{1}{a^{-n}}\\\\ -------------------------------\\\\ (9c^{-9})^{-3}\impliedby \textit{let's first distribute the exponent} \\\\\\ (9^{-3}c^{-9\cdot -3})\implies 9^{-3}c^{27}\implies \cfrac{1}{9^3}\cdot c^{27}\implies \cfrac{c^{27}}{729}$

Answer 2

Answer:C

Step-by-step explanation:

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