x^2+x/2-9=0

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Solution for x^2+x/2-9=0 equation: 


x in (-oo:+oo)

x^2+x/2-9 = 0

x^2+1/2*x-9 = 0

DELTA = (1/2)^2-(-9*1*4)

DELTA = 145/4

DELTA > 0

x = ((145/4)^(1/2)-1/2)/(1*2) or x = (-(145/4)^(1/2)-1/2)/(1*2)

x = ((145/4)^(1/2)-1/2)/2 or x = (-((145/4)^(1/2)+1/2))/2

x in { (-((145/4)^(1/2)+1/2))/2, ((145/4)^(1/2)-1/2)/2 }

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