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Math

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How do you F.O.I.L this? 2(x-4) times (x^2-5)? What do you do in between numbers (for example in between the first and the outer, do you put a plus sign or a multiplication sign?) Thank you for your help in advance.

  • Math -

    First x*x^2
    O x*(-5)=-5x
    I -4*x^2
    L -4*-5=20

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