Related Post: 2 2x 1 )= 5x 2 X 2 )( 2x 1 )=- 5 X 2 3x 2 2x 1 5x 2 2 2x 1 )/ 5 X 2 3 1 5 X 4 2 2x 5 =( X 1 2 2 1 5 X 2 5x 2 2x 1 )= 2 3x 4 2 2x 3 )+ 3 X 1 )= 5x 2 2x 1 )( 2x 2 5x − 4 1 2 28 2x )= 5 X 2