Mx 2 x 1 0 July 8, 2019 16 32 64 128 Mx 2 m 1 x 1 0 Mx 2 m 3 x 2m 1 0 Mx 2 2x 1 0 Mx 2 m 3 x 1 0 Mx 2 3m 2 x 1 0 luôn có nghiệm Mx 2 2x m 2 2m 1 0 Mx 2 2m 1 x m 1 0 Mx 2 4 m 1 x 8 0 X 3 mx 2 m 8 x 1 0 Mx 2 2 m 1 x 4m 0 Cho pt x 2 mx 1 0 Mx 2 2 m 1 x m 4 0 M 8 x 2 mx 1 0 Mx 2 2 m 1 x m 7 0