18 5x 2x 2 July 8, 2019 16 32 64 128 5x 2 2x 18 180 2x 2 5x 18 0 18 5x 2 )/( 1 2x 3x 2 2x 2 5x 18 factored 5x 2 (- 2x 9 )= 18 2x 2 5x 18 factorise