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x in (-oo:+oo)
x^(2/3)-(4*x^(1/3))+3 = 0
x^(2/3)-4*x^(1/3)+3 = 0
t_1 = x^(1/3)
1*t_1^2-4*t_1^1+3 = 0
t_1^2-4*t_1+3 = 0
DELTA = (-4)^2-(1*3*4)
DELTA = 4
DELTA > 0
t_1 = (4^(1/2)+4)/(1*2) or t_1 = (4-4^(1/2))/(1*2)
t_1 = 3 or t_1 = 1
t_1 = 1
x^(1/3)-1 = 0
1*x^(1/3) = 1 // : 1
x^(1/3) = 1
x^(1/3) = 1 // ^ 3
x = 1
t_1 = 3
x^(1/3)-3 = 0
1*x^(1/3) = 3 // : 1
x^(1/3) = 3
x^(1/3) = 3 // ^ 3
x = 27
x in { 1, 27 }
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