12 7x x 4 2x 3 July 8, 2019 16 32 64 128 X 4 2x 3 7x 2 8x 12 X 4 2x 3 7x 2 8x 12 0 X 4 2x 3 7x 2 20x 12 0 X 4 2x 3 7x 2 20x 12 X 4 2x 3 7x 2 8x 12 factorise Factor x 4 2x 3 7x 2 8x 12 12 x 4 + 7 12x2 7 12x-7 3