1/2x^2+4x-5

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Solution for 1/2x^2+4x-5 equation: 


x in (-oo:+oo)

(1/2)*x^2+4*x-5 = 0

1/2*x^2+4*x-5 = 0

DELTA = 4^2-(-5*1/2*4)

DELTA = 26

DELTA > 0

x = (26^(1/2)-4)/(1/2*2) or x = (-26^(1/2)-4)/(1/2*2)

x = 26^(1/2)-4 or x = -(26^(1/2)+4)

x in { -(26^(1/2)+4), 26^(1/2)-4 }

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