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General Arithmatic

  1. Jan 25, 2009 #1
    Can I make this general statement?

    [tex]A^{n}(B+C)^{n} = (AB+AC)^{n} [/tex]


    ?
     
  2. jcsd
  3. Jan 25, 2009 #2

    jgens

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    You're comfortable that (ab)^n = (a^n)(b^n) (aside from a few restrictions) correct? Is there anything you can do to change your expression into the form (a^n)(b^n)?
     
  4. Jan 25, 2009 #3

    Dick

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    If those are matrices, do you think you might need that A and B+C commute to make that rearrangement?
     
    Last edited: Jan 25, 2009
  5. Jan 25, 2009 #4
    not matrices but polynomials...
     
  6. Jan 25, 2009 #5

    Dick

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    They commute. So you should be fine.
     
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