Ответ:
1) 5х-11
______
х²-9
2) 30a. – 6a²
____________
5a³ – 60a² + 240a –320
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Ответ:
1) 5х-11
______
х²-9
2) 30a. – 6a²
____________
5a³ – 60a² + 240a –320