100 Points!!! Please look at the picture I posted below.

((3^8)(2^−5)(9^0))^−2(2^−2/3^3)^4(3^28)
=(6561(2^−5)(9^0))^−2(2^−2/3^3)^4(3^28)
=(6561(1/32)(90))^−2(2^−2/3^3)^4(3^28)
=(6561/32(9^0))^−2(2^−2/3^3)^4(3^28)
=(6561/32(1))^−2(2^−2/3^3)^4(3^28)
=(6561/32)^−2(2^−2/3^3)^4(3^28)
=1024/43046721(2^−2/3^3)^4(3^28)
=1024/43046721(2^−2/3^3)^4(3^28)
=(1024/43046721(1/4/27))^4)(3^28)
=(1024/43046721(1/108)^4)(3^28)
4/22876792454961 (22876792454961)=4
Note that when there is a number with power inside the parenthesis, and a power sign outside the parenthesis, you must multiply
(3^8)^-2 = 3^-16
(2^-5)^-2 = 2^10
(9^0)^-2 = 9^0
Simplify
3^-16 = 1/43,046,721
2^10 = 1024
9^0 = 1
Multiply
1/43,046,721 x 1024 = 1024/43046721 = 0.0000237881
0.0000237881 = 2.37881 x 10^-5
Answer are bolded. Not sure which one you want.
hope this helps