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Sagot :

  1. x³= -27 donc x= (-27)^ 1/3 = (-3^3)^ 1/3 = (-3 )^ 3*1/3 = -3
  2. x³ = 125 , donc x= (125)^1/3= (5^3)^ 1/3 = (5 )^ 3*1/3 =5
  3. x³= 8/1000 donc x= (8/1000)^ 1/3 = 2/10 = 0.2
  4. x³= -1 donc x= (-1 )^ 1/3 = -1

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