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Thread: algebra simplify

  1. March 2nd 2009, 12:19 PM #1
    JeWiSh
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    algebra simplify

    Apparently \frac{1}{28}(2x-1)^7 + \frac{1}{24}(2x-1)^6 = \frac{1}{168}(2x-1)^6(12x+1) I can't see it, I'd appreciate some help.
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  2. March 2nd 2009, 12:40 PM #2
    Prove It
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    Quote Originally Posted by JeWiSh View Post
    Apparently \frac{1}{28}(2x-1)^7 + \frac{1}{24}(2x-1)^6 = \frac{1}{168}(2x-1)^6(12x+1) I can't see it, I'd appreciate some help.
    Take out a common factor of (2x - 1)^6.

    This gives

    (2x - 1)^6\left[\frac{1}{28}(2x - 1) + \frac{1}{24}\right]

    Can you go from there?
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  3. March 2nd 2009, 01:23 PM #3
    JeWiSh
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    Quote Originally Posted by Prove It View Post
    Take out a common factor of (2x - 1)^6.

    This gives

    (2x - 1)^6\left[\frac{1}{28}(2x - 1) + \frac{1}{24}\right]

    Can you go from there?
    Ahhh, yes got it, thanks.
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