1. (m+4) (m-4)

2. (x+y) ( x-y)

3. (2m+3) ( 2m-3)

4.(3+y²) (3-y²)

5. (x+4) (x+5)

6. (y+2) (y-5)

7. (3ײ+5)²

8. (3y+5)²

9. (7x+3)²

10. (4w-3)²

11. (3a-b)²

12. (5f²-6h)²

13. (x+3y)³

14. (b+3)³

15. (3y+4)³

16. (2×-3)³

17. (3a-4)³

18. (5-3t)³

19. (a-4) (a²+2a-3)

20. (x+1)(3ײ+4x+2)

need ko na yung answer​