5x^2=4/20

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Solution for 5x^2=4/20 equation: 


x in (-oo:+oo)

5*x^2 = 4/20 // - 4/20

5*x^2-(4/20) = 0

5*x^2-1/5 = 0

5*x^2 = 1/5 // : 5

x^2 = 1/25

x^2 = 1/25 // ^ 1/2

abs(x) = 1/5

x = 1/5 or x = -1/5

x in { 1/5, -1/5 }

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