3 7x 9 15 July 8, 2019 16 32 64 128 X 3 7x 2 15x 9 X 3 7x 2 15x 9 0 3 7x 9 )- 19x =- 15 X 3 7x 2 15x 9 factored X 3 7x 2 15x 9 x 1 9 7x 15 3 )/ 3 2 Factorise x 3 7x 2 15x 9 15x 3 7x 4x 9 x 3 7x=9 3 x 3 = 9
