M 2 )( m 1 )-( 3m 5 )( 9 5m July 8, 2019 16 32 64 128 (m ^ 2)/(m ^ 2 - 9) - m/(m + 3) (2m)/(m - 3) + m/(m + 3) + (2m ^ 2)/(9 - m ^ 2) M^9 x m / m^5