Resta 9a 2 6a 5 de 10a 2 3a 25 July 8, 2019 16 32 64 128 1) (a - 5)/(a ^ 2 + 6a + 9) * ((a + 3) ^ 2)/(a ^ 2 - 25) ((30a)/(9a ^ 2 - 25) + 5/(5 - 3a)) / ((3a - 5)/(3a + 5) - 1) 9.21. 1) 2a ^ 3 + 5a ^ 2 + 2a 3) - 6a ^ 3 + 13a ^ 2 - 6a 1) (4a ^ 3 - 1)(9a ^ 3 + 5) - (6a ^ 3 - 1) ^ 2 3) (d ^ 7 - 3)(d ^ 7 + 7) - (d ^ 7 + 2) ^ 2
