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(5*(2+9)^2*x^6)/46-38+7 = 0
605/46*x^6 = 31 // : 605/46
x^6 = 1426/605
x^6 = 1426/605 // ^ 1/6
abs(x) = (1426/605)^(1/6)
x = (1426/605)^(1/6) or x = -(1426/605)^(1/6)
x in { (1426/605)^(1/6), -(1426/605)^(1/6) }
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