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Simplify by removing factors of 1. (r^2-64)/(r+8)^2

  • Math -

    I cannot figure this out! I know that the top is essentially the same as the bottom. SO what do I do?
    (r^2-64)/(r+8)^2=
    (r^2-64)/(r^2+64)=
    0 ?

  • Math -

    not correct
    do it this way ...

    (r^2-64)/(r+8)^2
    = (r+8)(r-8)/[(r+8)(r+8)]
    = (r-8)/(r+8)

  • Math -

    Geez. Thank you so much.

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