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