1/2x^2-4x-3/2

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Solution for 1/2x^2-4x-3/2 equation: 


x in (-oo:+oo)

(1/2)*x^2-(4*x)-(3/2) = 0

(1/2)*x^2-4*x-3/2 = 0

1/2*x^2-4*x-3/2 = 0

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

DELTA = 19

DELTA > 0

x = (19^(1/2)+4)/(1/2*2) or x = (4-19^(1/2))/(1/2*2)

x = 19^(1/2)+4 or x = 4-19^(1/2)

x in { 4-19^(1/2), 19^(1/2)+4 }

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