x^2+1/2x-4

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Solution for x^2+1/2x-4 equation: 


x in (-oo:+oo)

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

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

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

DELTA = 65/4

DELTA > 0

x = ((65/4)^(1/2)-1/2)/(1*2) or x = (-(65/4)^(1/2)-1/2)/(1*2)

x = ((65/4)^(1/2)-1/2)/2 or x = (-((65/4)^(1/2)+1/2))/2

x in { (-((65/4)^(1/2)+1/2))/2, ((65/4)^(1/2)-1/2)/2 }

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