### What's Wrong? Q9b

1. he missed one step in the equation

2. In the 1st step he should expand the value in the brackets before multiplying it by 3.

3. he is supposed to use foil method not multiply the first of each bracket and the last of each bracket.

4. he skip a step, and somehow got 36a^2 + 9

5. It's not "he", it's "she". Cuz I did it. :P
and... I still dk whr I went wrong. :X

6. He did not used the Foil method well enough as he missed out the step of taking 6aX3

7. She did the foil method wrongly..

8. he must do the ^2 before multiplying it

9. The person was careless and missed a step in the step before that

10. He should do The ^2 first before the multiplication and not the other way

11. She skipped a step

12. Six did not did the equation properly, and missed a step?

13. Fine she. She missed a step doing the second number. The erm +2ab part...

14. He did not expand the expressions correctly. It should have been -(36a^2 - 6a+ 6a+ 9) which is -36a^2-12a-9. He probably thought that it was 6a x 6a and 3 x 3 and he got 36a^2 and 9. I think he did not draw the arrows foil method and forgot the steps.

15. (S)he forgot to apply the FOIL method to (6a +3)(6a +3)

16. He did the foil method wrongly

17. She must do the ^2 in the first step before multiplying.

18. Should square (2a-1) first

19. This comment has been removed by the author.

20. He/She did not do the Foil method properly

21. She should do the ^2 first

22. She forgot was careless. When (6a+3)(6a+3) the answer is actually supposed to be 36a^2+18a+9

23. This has been done wrongly the student could have done foil where the circle was at

24. She should use the foil method instead.