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x in (-oo:+oo)
(4*x^2)/3 = 34/3 // - 34/3
(4*x^2)/3-(34/3) = 0
(4*x^2)/3-34/3 = 0
4/3*x^2 = 34/3 // : 4/3
x^2 = 17/2
x^2 = 17/2 // ^ 1/2
abs(x) = (17/2)^(1/2)
x = (17/2)^(1/2) or x = -(17/2)^(1/2)
x in { (17/2)^(1/2), -(17/2)^(1/2) }
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