7x 14 x 2 2x July 8, 2019 16 32 64 128 X 3 7x 2 2x 14 X 3 7x 2 2x 14 0 7x 3 x 14 )-( 2x 2 19 2x 2 7x 14 x 2 4 2x 11x 2 14 )+( 7x 2 x 3 14 x 7