x2=81/100

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Solution for x2=81/100 equation: 


x in (-oo:+oo)

x^2 = 81/100 // - 81/100

x^2-(81/100) = 0

x^2-81/100 = 0

1*x^2 = 81/100 // : 1

x^2 = 81/100

x^2 = 81/100 // ^ 1/2

abs(x) = 9/10

x = 9/10 or x = -9/10

x in { 9/10, -9/10 }

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