(x^2/2)+9x-2

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Solution for (x^2/2)+9x-2 equation: 


x in (-oo:+oo)

(x^2)/2+9*x-2 = 0

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

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

DELTA = 85

DELTA > 0

x = (85^(1/2)-9)/(1/2*2) or x = (-85^(1/2)-9)/(1/2*2)

x = 85^(1/2)-9 or x = -(85^(1/2)+9)

x in { -(85^(1/2)+9), 85^(1/2)-9 }

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