1 3 x 2 2x 9 July 8, 2019 16 32 64 128 1 3 x 2 2x 9 factorise 1 3x 2 2x 9 0 X 0 3 1 2x )= 2 9 (- 2x 1 )( x 2 9x 3 3 2x 1 6 x 2 9 2x 2 7x 3 x 2 9 1 5 x 2 )+( x 3 )= 2 2x 1 )- 9 1 3x 2 2x 9 is equal to X 3x 1 )- 3x 2 2x 9 1 3 3x 9 6 2 (- 2x 3 x 2 )+ 2x 7 x 1 )+ 9 4x 3 3x 2 2x 9 x 1 2x 1 3 x 2 4 8 9 1 3 x 2 2x 16 2x 3 4x √ 9
