4x 3 6x 2 1 0 July 8, 2019 16 32 64 128 4x 3 9x 2 6x 1 0 4x 3 )( 4x 3 )-( 6x 1 2 18 0 X 4 4x 3 6x 2 4x 1 0 Tìm x biết x 4 4x 3 6x 2 4x 1 0 4 + 4 = 6
