1. Factorization ： Difference of Two Squares and Perfect Squares

2. There are nine multiple choice questions in this interactive exercise. Click the letter corresponding to the answer you select. Enter the exercises

3. 1. A. B. D. C. Factorize

4. Correct ！ Next question

5. Wrong, try again ！ Return Think ：

6. Wrong, try again ！ Return Think ：

7. Wrong, try again ！ Return Think ：

8. 2. A. B. D. C. Factorize

9. Correct ！ Next question

10. Wrong, try again ！ Return Think ：

11. Wrong, try again ！ Return Think ：

12. Wrong, try again ！ Return Think ：

13. 3. A. B. D. C. Factorize

14. Correct ！ Next question

15. Wrong, try again ！ Return Hint ： Think ：

16. Wrong, try again ！ Return Hint ： Think ：

17. Wrong, try again ！ Return Think ：

18. 4. A. B. D. C. Factorize

19. Correct ！ Next question

20. Wrong, try again ！ Return Think ：

21. Wrong, try again ！ Return Think ：

22. Wrong, try again ！ Return Think ：

23. 5. A. B. D. C. Factorize

24. Correct ！ Next question

25. Wrong, try again ！ Return Think ：

26. Wrong, try again ！ Return Think ：

27. Wrong, try again ！ Return Think ：

28. 6. A. B. D. C. Factorize

29. Correct ！ Next question

30. Wrong, try again ！ Hint ： Think ： Return

31. Wrong, try again ！ Return Think ： Hint ：

32. Wrong, try again ！ Return Think ： Hint ：

33. 7. A. B. D. C. Factorize

34. Correct ！ Next question

35. Wrong, try again ！ Return Think ：

36. Wrong, try again ！ Return Think ：

37. Wrong, try again ！ Return Think ：

38. 8. A. B. D. C. Factorize

39. Correct ！ Next question

40. Wrong, try again ！ Return Think ： Hint ：

41. Wrong, try again ！ Return Think ：

42. Wrong, try again ！ Return Think ： Hint ：

43. 9. A. B. D. C. Factorize

44. Correct ！ End

45. Wrong, try again ！ Return Think ：

46. Wrong, try again ！ Return Think ：

47. Wrong, try again ！ Return Think ：

48. The End