x^2+x/2-3

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Solution for x^2+x/2-3 equation: 


x in (-oo:+oo)

x^2+x/2-3 = 0

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

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

DELTA = 49/4

DELTA > 0

x = ((49/4)^(1/2)-1/2)/(1*2) or x = (-(49/4)^(1/2)-1/2)/(1*2)

x = 3/2 or x = -2

x in { -2, 3/2 }

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