X 4 x 2 3 July 8, 2019 16 32 64 128 X 4 )( x 2 3x 6 X 4 )( x 2 3x 5 X 4 )( x 2 3x 1 X 4 x 2 3 0 X 4 )( x 2 3x 9 X 4 x 2 36 X 4 x 2 3x X 4 )( x 2 3x 7 X 4 4x 2 3 X 4 4x 2 3 0 X 4 4x 2 32 X 4 4x 2 3 factorise X 4 4x 2 3 factor X 4 2 x 3 7 X 4 2 x 3 9