tolong jawab yang d pakai cara

https://photomath.net/s/eyNRG

x^2 - 4 = (x +2) (x-2) , x = -2 dan x = 2
-2 | 3. -5. -12. 20
| -6. 22. -20
--------------------------------- +
2 | 3. -11. 10. 0
| 6. -10
------------------------ +
3. -5. 0
Jadi hasil bagi = 3x - 5