x^2-7/2x-2=0

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Solution for x^2-7/2x-2=0 equation: 


x in (-oo:+oo)

x^2-((7/2)*x)-2 = 0

x^2+(-7/2)*x-2 = 0

x^2-7/2*x-2 = 0

DELTA = (-7/2)^2-(-2*1*4)

DELTA = 81/4

DELTA > 0

x = ((81/4)^(1/2)+7/2)/(1*2) or x = (7/2-(81/4)^(1/2))/(1*2)

x = 4 or x = -1/2

x in { -1/2, 4 }

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