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4/5 = 2*x^25 // - 2*x^25
4/5-(2*x^25) = 0
4/5-2*x^25 = 0
-2*x^25 = -4/5 // : -2
x^25 = 2/5
x^25 = 2/5 // ^ 1/25
x = (2/5)^(1/25)
x = (2/5)^(1/25)
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