1/3x^2-4=0

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Solution for 1/3x^2-4=0 equation: 


x in (-oo:+oo)

(1/3)*x^2-4 = 0

1/3*x^2 = 4 // : 1/3

x^2 = 12

x^2 = 12 // ^ 1/2

abs(x) = 2*3^(1/2)

x = 2*3^(1/2) or x = -(2*3^(1/2))

x in { 2*3^(1/2), -(2*3^(1/2)) }

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