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There are altogether 10 questions.
In Part A of the activity, you and your partner(s) would have identified the method(s) that can be applied to factorise each expression.

You should have submitted your responses in the form

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Google Forms - create and analyze surveys, for free.

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Now, pick 2 questions of your choice, which should be different from your partner's.

1. Attempt the question in your notebook.
2. Take a clear & upright PHOTO of your work and post it in the padlet.

Remember to indicate your NAME and INDEX NUMBER as the subject title.

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Ignore q4

edit: (4x^2 - 1) can be factorised into (2x +1)(2x -1)

final ans is (2x+1)(2x-1)(a+3b)

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corrections

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With Soin Wei Dong

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Corrected

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Posted on 28 April 2020 (for discussion)