Thursday, March 12, 2009

Question 2: Factorised correctly?

How would you do your checks to see if you factorised correctly?

[Habits of Mind: Striving for Accuracy]

3 comments:

  1. I will use the "arrow" method which means when there are two brackets with the factors after factorisation, I expand the factorised answer or solution. If I get back to the original question, I am correct. If possible, I will try to do the checks (i.e. expansion) mentally as checks do not help us get marks but instead ensure that the answer that I have gotten is right.

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  2. I would use the "arrows" to link from one factor to another, so as to expand it out correctly without making any careless mistakes in between, and i will also doublecheck this answer that i have got, whether it matches the one given in the question.

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  3. I would make sure that when the factorised expression is expanded it matches the original expression.

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