1. 3x - 12 - xy + 4y = (x - 4)(___)

2. 36m² + 84m + 49 = (___)(6m + 7)

3. 2x² - 5x - 3 = (___) (x - 3)

4. 15a² + 30a⁴b³ - 45a³b³ = 15a² (___)

5. -100 + 9x² = (___)(3x + 10)

6. x³ - 216 = (x - 6)(___)

7. 81m⁴ - 121n⁶ = (9m² - 11n³)(___)

8. 27x³ + 125y¹² = (3x + 5y⁴)(___)

9. x² - 12x + 35 = (___)(x - 7)

10. 10x² - 43x - 9 = (2x - 9)(___)


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