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t in (-oo:+oo)
(t-(1/2))^2 = -17/4 // + -17/4
(t-(1/2))^2-(-17/4) = 0
(t-1/2)^2+17/4 = 0
(4*(t-1/2)^2)/4+17/4 = 0
4*(t-1/2)^2+17 = 0
4*t^2-4*t+18 = 0
4*t^2-4*t+18 = 0
2*(2*t^2-2*t+9) = 0
2*t^2-2*t+9 = 0
DELTA = (-2)^2-(2*4*9)
DELTA = -68
DELTA < 0
2 = 0
2/4 = 0
2/4 = 0 // * 4
2 = 0
2 = 0
t belongs to the empty set
t belongs to the empty set
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