1 3x 2 5x 2 9 July 8, 2019 16 32 64 128 Add 3x 2 5x 1 2x 2 9x 6 2x 2 3x 1 )( 2x 2 5x 1 )= 9x 2 1 3x 2 5x )( 3x 2 9x 3x 2 5x 1 2x 2 9x 6 13x 2 5x 9x 2 1 3x 2 6x 1 )+( 4x 2 5x 9 3x 2 5x 7 )-( 2x 2 9x 1 3 1 3x 2 1 3x 7 5x 9x 2 1 3 (- 3x 2 )+ 4x 1 2 5x 30 )- 9 5x 2 3x 17x 2 1 9x 3
