1/4-4z^2

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Solution for 1/4-4z^2 equation: 


z in (-oo:+oo)

1/4-(4*z^2) = 0

1/4-4*z^2 = 0

-4*z^2 = -1/4 // : -4

z^2 = 1/16

z^2 = 1/16 // ^ 1/2

abs(z) = 1/4

z = 1/4 or z = -1/4

z in { 1/4, -1/4 }

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