x^2=81/169

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Solution for x^2=81/169 equation: 


x in (-oo:+oo)

x^2 = 81/169 // - 81/169

x^2-(81/169) = 0

x^2-81/169 = 0

1*x^2 = 81/169 // : 1

x^2 = 81/169

x^2 = 81/169 // ^ 1/2

abs(x) = 9/13

x = 9/13 or x = -9/13

x in { 9/13, -9/13 }

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