Question

http://prntscr.com/51r4ma

Answer 1

@TheSmartOne

Answer 2

you multiply the exponents
9 ^ (-6 *3_

Answer 3

exponent rule
\[(x^n)^m=x^{n(m)}\]

Answer 4

then what?

Answer 5

\[(9^{-6})^3=9^{-6(3)}\]

Answer 6

What is -6(3)?

Answer 7

18