2 x 6 ) 2 4x 4 July 8, 2019 16 32 64 128 2 x 6 )+ 2 4x 4 2 2x 6 )= 4x 4 X 2 5x 6 x 2 4x 4 6 x 2 4x 6 x 2 4x 1 42 X 2 4x 6 21 x 2 4x 10 X 2 4x 5 )( x 2 4x 6 )+ 3 (- 6x 2 x 6 )-( 4x 2 6x 4 Dfrac x 2 x 6 x 2 4x 4 2 x 8 )+ 4x 6 x 2 )- 4 Rút gọn x 2 5x 6 x 2 4x 4 2 x - 4 = 6