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(9*x^4)/3-((10*x^2)/3)+0+1 = 0
(9*x^4)/3+(-10/3)*x^2+1 = 0
3*x^4-10/3*x^2+1 = 0
t_1 = x^2
3*t_1^2-10/3*t_1^1+1 = 0
3*t_1^2-10/3*t_1+1 = 0
DELTA = (-10/3)^2-(1*3*4)
DELTA = -8/9
DELTA < 0
x belongs to the empty set
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