Question

How would I write (8a^-9)^-2/3 in simplest form ?

Answer 1

\[a^-2 = 1/a^2 \]

Answer 2

Thank you, can I just ask you how you did that? I'm not quite sure how I'm supposed to arrive at this answer.

Answer 3

ok this is just a law that you have to remember. Couple of laws to remember
\[a^-2 = 1/a^2\]
\[(a^2)^2= a^4\]
\[a ^{1/3}= \sqrt[3]{a}\]
\[\sqrt{a}= a ^{1/2}\]