2 2x 4 ) 16 4 x 2 July 8, 2019 16 32 64 128 2 2x 4 )+ 16 4 x 2 X 2 )( x 2 2x 4 )+( 4 x )( x 2 4x 16 2 căn 2x 4 4 căn x 2 căn 9x 2 16 2x - 4 = 16
