(a^n) \* (a^m) = (a*a*a*a*a) * (a*a*a*a*a*a*a) ^ ^ n times m times I don't see w... | Hacker News

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baby on Dec 5, 2011 | parent | context | favorite | on: Harvard 1869 entrance exam

(a^n) * (a^m)

  =

  (a*a*a*a*a) * (a*a*a*a*a*a*a)

      ^              ^

   n times        m times

I don't see what is simpler than this, It comes from the basic definition of what a power is.

dhconnelly on Dec 5, 2011 [–]

this, with the associative law

baby on Dec 7, 2011 | [–]

I could have wrote it without ( ) and I don't think we learn what associative means in highschool.

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