4 2 x 4 July 8, 2019 16 32 64 128 4x 2 x 4 4 2 x 4 3 4 2 x 4 5 4x 2 x 4 0 4 2 x 4 10 4x 2 x 4 factorise 4 2 x 4 6 4 2 x 4 8 4 2 x 4 1 4 2 x 4 7 4 2 x 40 4 2 x 4 9 4x 2 x 4 factor 4x 2 2x 4 4 2 2x 4