BUNNY99IN BUNNY99IN Math Answered Factoring by grouping1. 12a³-9a²+ 4a - 32. 3n³- 4n² + 9a - 123. 12n³ + 4n² + 3n + 14. 35xy - 5x - 5y + 85. 224az + 56ac - 84yz - 21yc6. mz - 5mh² - 5nz +25nh²