2 9x 1 8 July 8, 2019 16 32 64 128 (- 2 )( 9x 1 )- 8x 2 9x 1 8 2x 9x 2 8x 1 0 1 9x 2 1 8x 4 2 (- 3x 1 )= 9x 8 14 2 1 9x − 8 11 1 2 9x 8 81x 4 9x 2 1 9 5 9x 2 1 3 )= 8 9x 2 1 82 9x 2 8x 1 factored 8x 2 9x 1 4 12x 16 Factorise 9x 2 8x 1 18x 17 2 9x 8 )+ 1 6x 8 2 9x 1