1/4b^2-4

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


b in (-oo:+oo)

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

1/4*b^2 = 4 // : 1/4

b^2 = 16

b^2 = 16 // ^ 1/2

abs(b) = 4

b = 4 or b = -4

b in { 4, -4 }

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