(1/2)x^2+2x-4

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


x in (-oo:+oo)

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

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

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

DELTA = 12

DELTA > 0

x = (12^(1/2)-2)/(1/2*2) or x = (-12^(1/2)-2)/(1/2*2)

x = 2*3^(1/2)-2 or x = -2*3^(1/2)-2

x in { -2*3^(1/2)-2, 2*3^(1/2)-2 }

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