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x in (-oo:+oo)
x^(4/3) = 2*x^(1/3) // - 2*x^(1/3)
x^(4/3)-(2*x^(1/3)) = 0
x^(4/3)-2*x^(1/3) = 0
t_1 = x^(1/3)
1*t_1^4-2*t_1^1 = 0
t_1^4-2*t_1 = 0
t_1*(t_1^3-2) = 0
1*t_1^3 = 2 // : 1
t_1^3 = 2
t_1^3 = 2 // ^ 1/3
t_1 = 2^(1/3)
t_1 = 0
t_1 = 0
t_1 = 2^(1/3)
x^(1/3)-2^(1/3) = 0
1*x^(1/3) = 2^(1/3) // : 1
x^(1/3) = 2^(1/3)
x^(1/3) = 2^(1/3) // ^ 3
x = 2
t_1 = 0
x^(1/3)+0 = 0
x^(1/3) = 0
1*x^(1/3) = 0 // : 1
x^(1/3) = 0
x = 0
x in { 2, 0 }
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