1/2x^2-1/2x-10=0

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Solution for 1/2x^2-1/2x-10=0 equation: 


x in (-oo:+oo)

(1/2)*x^2-((1/2)*x)-10 = 0

(1/2)*x^2+(-1/2)*x-10 = 0

1/2*x^2-1/2*x-10 = 0

DELTA = (-1/2)^2-(-10*1/2*4)

DELTA = 81/4

DELTA > 0

x = ((81/4)^(1/2)+1/2)/(1/2*2) or x = (1/2-(81/4)^(1/2))/(1/2*2)

x = 5 or x = -4

x in { -4, 5 }

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