1/2x^2-1/2x-3=0

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


x in (-oo:+oo)

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

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

1/2*x^2-1/2*x-3 = 0

DELTA = (-1/2)^2-(-3*1/2*4)

DELTA = 25/4

DELTA > 0

x = ((25/4)^(1/2)+1/2)/(1/2*2) or x = (1/2-(25/4)^(1/2))/(1/2*2)

x = 3 or x = -2

x in { -2, 3 }

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