M 3 m 2 4m 4 July 8, 2019 16 32 64 128 M 3 m 2 4m 4 0 M 4 2m 3 3m 2 4m 4 0 M 3 4m )= 7 4 8 m 2 4m 3 m 2 4mn n )/( m 2 n (- 4m 3 m 9 )-( 4m 2 m 12 4 m + 3 m 4 m 4 m 3m 2 m
