∛-125=-5⁴√1/16 =1/2
⁵√-1024=-4⁴√625=5∛-27/8 = -3/2⁴√⁵√12=²⁰√12∛√6=⁶√6log₃ x= -4 x=3^(-4)=1/81log₂ x= 3 x=2^3=8