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(x^4)/3+(2*x^2)/3-24 = 0
1/3*x^4+2/3*x^2-24 = 0
t_1 = x^2
1/3*t_1^2+2/3*t_1^1-24 = 0
1/3*t_1^2+2/3*t_1-24 = 0
DELTA = (2/3)^2-(-24*1/3*4)
DELTA = 292/9
DELTA > 0
t_1 = ((292/9)^(1/2)-2/3)/(1/3*2) or t_1 = (-(292/9)^(1/2)-2/3)/(1/3*2)
t_1 = 3/2*((292/9)^(1/2)-2/3) or t_1 = -3/2*((292/9)^(1/2)+2/3)
t_1 = -3/2*((292/9)^(1/2)+2/3)
x^2-(-3/2*((292/9)^(1/2)+2/3)) = 0
x^2+3/2*((292/9)^(1/2)+2/3) = 0
1*x^2 = -(3/2*((292/9)^(1/2)+2/3)) // : 1
x^2 = -3/2*((292/9)^(1/2)+2/3)
t_1 = 3/2*((292/9)^(1/2)-2/3)
x^2-(3/2*((292/9)^(1/2)-2/3)) = 0
x^2-3/2*((292/9)^(1/2)-2/3) = 0
1*x^2 = -(-3/2*((292/9)^(1/2)-2/3)) // : 1
x^2 = 3/2*((292/9)^(1/2)-2/3)
x^2 = 3/2*((292/9)^(1/2)-2/3) // ^ 1/2
abs(x) = (3/2)^(1/2)*((292/9)^(1/2)-2/3)^(1/2)
x = (3/2)^(1/2)*((292/9)^(1/2)-2/3)^(1/2) or x = -((3/2)^(1/2)*((292/9)^(1/2)-2/3)^(1/2))
x in { (3/2)^(1/2)*((292/9)^(1/2)-2/3)^(1/2), -((3/2)^(1/2)*((292/9)^(1/2)-2/3)^(1/2)) }
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