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x in (-oo:+oo)
x*x-(1*(1/12))-(1*(3/8)) = 0
x*x-1/12-3/8 = 0
1*x^2 = 11/24 // : 1
x^2 = 11/24
x^2 = 11/24 // ^ 1/2
abs(x) = (11/24)^(1/2)
x = (11/24)^(1/2) or x = -(11/24)^(1/2)
x in { (11/24)^(1/2), -(11/24)^(1/2) }
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