5m 2n 9n 3 mn 2 2m 3 July 8, 2019 16 32 64 128 5m 2n 9n 3 mn 2 2m 3 in standard form (3m + 5n) + (9m - 7n) - (-2n + 5m) 3m - 2n = 5 m + 2n = 15 (2m)/(5m + 5n) + (3n)/(5m - 5n) (5m + 3n) ^ 2