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-   -   Exponents... again (https://www.askmehelpdesk.com/showthread.php?t=652232)

  • Apr 18, 2012, 08:25 PM
    webb2red
    Exponents... again
    Can you explain the solution for 5
  • Apr 18, 2012, 08:27 PM
    webb2red
    That question did not post correctly. The question was for a solution to 5^x + 15^x.
  • Apr 19, 2012, 06:04 AM
    ebaines
    What kind of "solution" are you looking for? Does this help:

    ?
  • Apr 23, 2012, 05:38 PM
    webb2red
    I follow you until the last number sentence. I'm sure there is some canceling out of terms going on, but where does the 1 come from? I'm just having a mental block!
  • Apr 24, 2012, 08:16 AM
    ebaines
    Remember that a(b+c) = ab + ac. For example: 2(3+4) = 2x3 + 2x4 = 6 + 8 =14. So for this problem

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