Question

Which expression is equivalent?

Answer 1

`(1)/(81)`

Explanation:

The expression is given to be:

`(3^(2))^-`²

( 3 x
`3 )^(-2)`

`(9)^(-2)`

1 / (9
`)^(-2)`

∴ = 1 / 81

Answer 2

-81 use parenthesis first then use your exponent