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Text File  |  1990-03-07  |  212b  |  7 lines
  1. Why? Well, #strx3/x2=xxx/xx=x#.  Each 'x' top and bottom reduces to '1'.  Subtracting exponents is a quick way to see the result.
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  3. The rule is: #strx^m\/x^n=x^m-n#.
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  5. Reduce like powers by subtracting exponents.
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