1. (5²)⅔= 2. ( 5½) negatif ¾ 3.(6¾) negatif ²

1. (5^2)^2/3= 5^ (4/3)

2.(5^1/2)^(-3/4)= 5^(-3/8)= 1/ {5^(3/8)}

3.(6^3/4)^-2 =6^ -6/4 = 6^ (-3/2) = 1/ {6^(3/2)}