Related Post: 2 2x 1 )= 2 4x 2 2x 1 4 X 2 4 2 2x 1 )= 2 4x 2x 1 2 4x 2 0 2 X 1 )+ 2x 4x 2 2 2x 1 )= 4x 3 X 2 2x 1 4 X 2 3 2x 1 2 4x 13 2x 2 3x 1 )( 4x 2 3x 2 2x 1 )-( X 2 4x