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f=2
g=-3
h=6
i=-3.6593
j=4.1408
x= ∛200 x³= 0 - 27
x=5,848 x = ∛-27
verif: 5,848³ = 199,9= 200 x= -3
Verif: -3³ + 27 = 0
- 27 + 27 = 0
f) x³ - 8 = 0 h) x³ - 37 = 179 i) x³ + 19= - 30
x³= 0 + 8 x³ = 179 + 37 x³= - 30 - 19
x= ∛8 x³= 216 x³= -49
x=2 x= ∛216 x= ∛-49
V= 2³-8= 0 x=6 x = -3,656
8 - 8 = 0 V: 6³ - 37 = 179 V= -3,656³ + 19= - 30
216 - 37 = 179 - 48,86 + 19 = - 30
-49 + 19 = - 30
J) x³ - 21 = 50
x³ = 50 + 21
x= ∛71
x= 4,14
verif: 4,14³ - 21 = 50
70,9 - 21 = 50
71 - 21 = 50