x^2-9/2x-4

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Solution for x^2-9/2x-4 equation: 


x in (-oo:+oo)

x^2-((9/2)*x)-4 = 0

x^2+(-9/2)*x-4 = 0

x^2-9/2*x-4 = 0

DELTA = (-9/2)^2-(-4*1*4)

DELTA = 145/4

DELTA > 0

x = ((145/4)^(1/2)+9/2)/(1*2) or x = (9/2-(145/4)^(1/2))/(1*2)

x = ((145/4)^(1/2)+9/2)/2 or x = (9/2-(145/4)^(1/2))/2

x in { (9/2-(145/4)^(1/2))/2, ((145/4)^(1/2)+9/2)/2 }

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