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(12*x^2)/3+(5^1)/3-2 = 0
(12*x^2)/3+5/3-2 = 0
4*x^2 = 1/3 // : 4
x^2 = 1/12
x^2 = 1/12 // ^ 1/2
abs(x) = (1/12)^(1/2)
x = (1/12)^(1/2) or x = -(1/12)^(1/2)
x in { (1/12)^(1/2), -(1/12)^(1/2) }
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