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When can I/can't I cancel factors with variables such as (x - 1) /(x - 1)?


1 comment

  • jef

    Hi, this might be a bit late but...

    on Mathway,

    it says that the end result is the answer shown above but they did simplify the two (x + 12s) and in my textbooks the examples also seem to do this.

    Why is it like this?

    Thank you very much in advance!


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