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Math Help - Factoring problem (should be easy =\ )

  1. #1
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    Factoring problem (should be easy =\ )

    Hi, this is my first post. I am doing algebra for the first time in a decade and I am having trouble working this out. I've tried a few different ways and I know it is easy but I just can't get it =\

    Factor the following expression:

    x^2 - 4 + (x+2)^3

    What am I missing?
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  2. #2
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    Quote Originally Posted by mrnemo View Post
    Hi, this is my first post. I am doing algebra for the first time in a decade and I am having trouble working this out. I've tried a few different ways and I know it is easy but I just can't get it =\

    Factor the following expression:

    x^2 - 4 + (x+2)^3

    What am I missing?
    Substitute x^2 - 4 = (x - 2)(x + 2). Then factorise by taking out the common factor of (x - 2). Check for further simplification after doing this.
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