3 7 x 14 2 7 July 8, 2019 16 32 64 128 9 14 x 3 7 3 7 x 5 14 2 7 2 7 3 7 x 14 9 3 x 4 )- 14 2 x 7 )+ 7 3 14 x 7 3 7×(-14) 7 3 14×7
