x-x^2/4-1/2=0

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


x in (-oo:+oo)

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

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

x-1/4*x^2-1/2 = 0

DELTA = 1^2-(-1/2*(-1/4)*4)

DELTA = 1/2

DELTA > 0

x = ((1/2)^(1/2)-1)/(-1/4*2) or x = (-(1/2)^(1/2)-1)/(-1/4*2)

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

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

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