(t*t)-4t+3=0求t
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(t*t)-4t+3=0求t
(t*t)-4t+3=0
求t
(t*t)-4t+3=0求t
t^2-4t+3=0
(t-1)(t-3)=0
所以
t1=1
t2=3
1,3
t^2-4t+3=0
(t-1)(t-3)=0
所以
t1=1
t2=3
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