Chapter 4: Algebra... Help! What's Wrong?

Jane did the following:
  • 3a + b = 3ab
  • 2s + 4t = 6st
Do you think Jane is correct in her algebraic manipulations?
If yes, please write down examples to show that her answer is correct.

If not, explain to Jane her mistakes and help her to correct.

Enter your response in Comments.

4 comments:

  1. Jane did it incorrectly.

    3a( 3 x a ) + b is not 3ab( 3 x a x b ) but rather is [ (3 x a) + b].
    2s(2 x s ) + 4t( 4 x t ) is not 6st ( 6 x s x t ) but rather is [ (2 x s) + (4 x t) ].

    ReplyDelete
  2. jane did it incorrectly.
    3ab = 3 x a x b
    the correct one would be 3 x a + b

    2s + 4t = 2 x s + 4 x t

    ReplyDelete
  3. She did it wrongly as
    3a + b ≠ 3ab but as (3a+b) if she want 3ab it should be 3a x b to get 3ab

    2s + 4t ≠6st but as (2s+3t)

    ReplyDelete
  4. This comment has been removed by the author.

    ReplyDelete