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D( t )
2-(2*t) = 0
5-t = 0
2-(2*t) = 0
2-(2*t) = 0
2-2*t = 0
2-2*t = 0 // - 2
-2*t = -2 // : -2
t = -2/(-2)
t = 1
5-t = 0
5-t = 0
5-t = 0 // - 5
-t = -5 // * -1
t = 5
t in (-oo:1) U (1:5) U (5:+oo)
(3*t+2)/(5-t)+(3-(2*t))/(2-(2*t)) = 0
(3*t+2)/(5-t)+(3-2*t)/(2-2*t) = 0
((3*t+2)*(2-2*t))/((5-t)*(2-2*t))+((3-2*t)*(5-t))/((5-t)*(2-2*t)) = 0
(3*t+2)*(2-2*t)+(3-2*t)*(5-t) = 0
19-4*t^2-11*t = 0
19-4*t^2-11*t = 0
19-4*t^2-11*t = 0
DELTA = (-11)^2-(-4*4*19)
DELTA = 425
DELTA > 0
t = (425^(1/2)+11)/(-4*2) or t = (11-425^(1/2))/(-4*2)
t = (5*17^(1/2)+11)/(-8) or t = (11-5*17^(1/2))/(-8)
(t-((5*17^(1/2)+11)/(-8)))*(t-((11-5*17^(1/2))/(-8))) = 0
((t-((5*17^(1/2)+11)/(-8)))*(t-((11-5*17^(1/2))/(-8))))/((5-t)*(2-2*t)) = 0
((t-((5*17^(1/2)+11)/(-8)))*(t-((11-5*17^(1/2))/(-8))))/((5-t)*(2-2*t)) = 0 // * (5-t)*(2-2*t)
(t-((5*17^(1/2)+11)/(-8)))*(t-((11-5*17^(1/2))/(-8))) = 0
( t-((11-5*17^(1/2))/(-8)) )
t-((11-5*17^(1/2))/(-8)) = 0 // + (11-5*17^(1/2))/(-8)
t = (11-5*17^(1/2))/(-8)
( t-((5*17^(1/2)+11)/(-8)) )
t-((5*17^(1/2)+11)/(-8)) = 0 // + (5*17^(1/2)+11)/(-8)
t = (5*17^(1/2)+11)/(-8)
t in { (11-5*17^(1/2))/(-8), (5*17^(1/2)+11)/(-8) }
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