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X in (-oo:+oo)
X^2 = 25/589 // - 25/589
X^2-(25/589) = 0
X^2-25/589 = 0
1*X^2 = 25/589 // : 1
X^2 = 25/589
X^2 = 25/589 // ^ 1/2
abs(X) = (25/589)^(1/2)
X = (25/589)^(1/2) or X = -(25/589)^(1/2)
X in { (25/589)^(1/2), -(25/589)^(1/2) }
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