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10*x^10-(3/10) = 0
10*x^10-3/10 = 0
10*x^10 = 3/10 // : 10
x^10 = 3/100
x^10 = 3/100 // ^ 1/10
abs(x) = (3/100)^(1/10)
x = (3/100)^(1/10) or x = -(3/100)^(1/10)
x in { (3/100)^(1/10), -(3/100)^(1/10) }
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