9 m 4 5 July 8, 2019 16 32 64 128 M (- 4 9 n (- 5 3 9 4 m 5 )+ 4m 4 9 m 5 6 4 9 m 54 M 4 5n 9 3 5m 9 m 4 5 m 9 )+ 4 8m 4 9 m 3 5 X 9 m 4 25 m 5 65 94 4 9 m 5 5 m 9 )+ 4 8m simplified 5 m 4 )+ 9 =- 21
