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I have a factoring question; what is 8a^2-8a-30? I've been working on this for a while and I think I understand factoring, but I'm not getting the right answer, which is supposed to be 2(2a-5)(2a+3).
Any help would be so appreciated! :)

  • Sally -

    factor 2 out (all coefficents are multiples of 2)
    2(4a^2 -4a-15)
    Now factor the second part...

    It might take a while to find the factors

  • Math -

    but, I don't understand how you got the answer in the first place; can you place explain?

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