X 4 x 2 6x 1 0 July 8, 2019 16 32 64 128 X 4 1 )( 5 6x )( x 2 ) 0 X 4 4x 3 6x 2 4x 1 0 X ^ 3 + 4x ^ 2 + 6x - 1 = 0 Tìm x biết x 4 4x 3 6x 2 4x 1 0 X 4 x 3 6x 2 5 x 1 )= 0 X 4 x 1 5x 2 6x 6 0 ((x 1)(x 4 x 3 0 x 2 6x 27=0
