X2 2 m 1 x m 4 0 July 8, 2019 16 32 64 128 X2 2 m 1 x 2m 4 0 Cho phương trình x2 2 m 1 x m 4 0 X2 2 m 1 x m2 4 0 X2 2 m 1 x 6m 4 0 Cho pt x2 2 m 1 x m 4 0 X2 4m 1 x 2 m 4 0
