(- 3m ) ( 2 4n )-( 5m 3 8n July 8, 2019 16 32 64 128 (- 3m )+( 2 4n )-( 5m 3 8n (3m – 4n)(5m + 8n) - 4m ^ 3 * n ^ 5 * 5n ^ 2 * m ^ 4
