81x^2-1/16

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Solution for 81x^2-1/16 equation: 


x in (-oo:+oo)

81*x^2-(1/16) = 0

81*x^2-1/16 = 0

81*x^2 = 1/16 // : 81

x^2 = 1/1296

x^2 = 1/1296 // ^ 1/2

abs(x) = 1/36

x = 1/36 or x = -1/36

x in { 1/36, -1/36 }

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