X2 4 x 2 2x 1 July 8, 2019 16 32 64 128 X2 4 x 2 2x 1 0 X 2 )( x2 2x 1 )/ 4 3x x2 4x 4 x 2 2x 1 X2 2x 1 =( 4 x 2 3
