X 4 x 2 6x 0 July 8, 2019 16 32 64 128 X 4 x 2 6x 1 0 X 4 x 3 6x 2 0 X 4 2x 3 x 2 6x 3 0 X 3 4x 2 6x 4 0 X 4 3x 3 4x 2 6x 4 0 X 3 4x 2 6x 0 X 4 x 3 6x 2 14x 12 0 X 4 1 )( 5 6x )( x 2 ) 0 X 4 x 3 6x 2 4x 8 0 X 2 4 2 x 2 6x 16 2 0 X 4 x 2 6x 8 0 X 4 7x 2 6x 0 Giải pt x 4 x 2 6x 8 0
