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2025-02-20 23:06:27
a) x = 2 +- căn 3
b)m=5
2025-02-20 23:05:23
a) x1=-2 ; x2=1
b)do delta = m^2 nên phương trình có nghiệm với mọi m
c)m=1
2025-02-20 23:04:17
a) x1=1 ; x2=2
b) m <=9/4
c) m=1
m=5/4
2025-02-20 23:01:31
m=1;m=-1
2025-02-20 23:01:27
m=1
m=7/3