anonymous
  • anonymous
rational exponents help!! x^-3/7 over x^1/7
Mathematics
chestercat
  • chestercat
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anonymous
  • anonymous
x^(-4/7)
anonymous
  • anonymous
What do you do when you have two exponents with the same base being divided by each other?
anonymous
  • anonymous
You subtract them correct?

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anonymous
  • anonymous
So, take the numerator's exponent and subtract with the denominator's exponent
anonymous
  • anonymous
subtract it from the denominator's exponent
anonymous
  • anonymous
sorry for awkward wording
anonymous
  • anonymous
its fine, I got -4/7 too but the math program doesn't like that answer, when I simplify I get -2/5 and it still says its wrong
anonymous
  • anonymous
that should be the answer, is the problem copied down correctly? If so, then it's just the program and you might have to talk to your instructor. well, the basic idea is that when you have exponents with the same base being divided from each other you just subtract the exponents. Alternatively, when you have same base exponents being multiplied by each other, you just add the corresponding exponents. I hope that helps.

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