4 m 12 2 July 8, 2019 16 32 64 128 4 m 12 )= 24 4 m 3 )+ 2m 12 2m m 4 )- 8 m 2m 12 4 12 m 20 M 4 8m 2 12 4 m 5 )= 2 m 12 4 m 12 4m + 12 = 4 2 m