2x 1 2 4x 2 4x 1 July 8, 2019 16 32 64 128 2x 1 2 4x 2 1 0 2x 1 )( x 2 )= 4x 2 1 4x 2 + 2x 1 )+( 3x 2 + 4x 1 2x 4x 2 1 2x 4x 2 1 4 8x 3 2x 1 4x 2 1 4x 2 1 2x 1 2 )( 4x 2 x 1 4 2x 1 )( 4x 2 2x 1 )- 4x 2x 2 3 )= 23 2x 1 2 4x 2 1 0 tìm x 2x 2 1 4x 2 10x 5 2x 3 2 4x 1 16x 2 4x 1
