7 3 x 2 7 x 10 July 8, 2019 16 32 64 128 1 /( x 7 2 3 x 7 10 0 2 7 x 3 2 7 x 2 10 49 3 x 7 10 7 10 x 5 2 x 7 10 7 x 10
