The equivalent expressions are 3^4 and -9^2
How to determine the equivalent expressions?
To determine the equivalent expressions, we simply solve the options.
So, we have:
3^9 = 19683
3^4 = 81
-9^2 = 81
9^9 = 387420489
From the above computation, we have:
3^4 = 81 and -9^2 = 81
Hence, the equivalent expressions are 3^4 and -9^2
Read more about equivalent expressions at:
https://brainly.com/question/2972832
