tolong dijawab mksh :)

4.) 32^2/3×3/5 = 32^6/15 = 2^5×6/15 = 2^ 6/3 = 2^2 = 4

5.) 81^2/3×-3/4 = 81^-6/12 =81^-½ = 1/(81^½) = 1/√81 = 1/9

6.) (128)^8/7 : (16)^3/4
2^7(8/7) : 2^4(3/4)
2^8 : 2^3
256 : 8 = 32 ..
Semoga bermanfaat ..