t^2-4/2t-4

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Solution for t^2-4/2t-4 equation: 


t in (-oo:+oo)

t^2-((4/2)*t)-4 = 0

t^2-2*t-4 = 0

t^2-2*t-4 = 0

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

DELTA = 20

DELTA > 0

t = (20^(1/2)+2)/(1*2) or t = (2-20^(1/2))/(1*2)

t = (2*5^(1/2)+2)/2 or t = (2-2*5^(1/2))/2

t in { (2-2*5^(1/2))/2, (2*5^(1/2)+2)/2 }

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