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(x^2)/3-(1/25) = 0
(x^2)/3-1/25 = 0
1/3*x^2 = 1/25 // : 1/3
x^2 = 3/25
x^2 = 3/25 // ^ 1/2
abs(x) = (3/25)^(1/2)
x = (3/25)^(1/2) or x = -(3/25)^(1/2)
x in { (3/25)^(1/2), -(3/25)^(1/2) }
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