anonymous
  • anonymous
simplify 12x3/12x7
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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chestercat
  • chestercat
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welshfella
  • welshfella
first what is 12/ 12 ?
anonymous
  • anonymous
1
welshfella
  • welshfella
right now lets deal with the terms in x these are x^3 and x^7 do you know the law of indices when dividing?

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More answers

anonymous
  • anonymous
no sir.
welshfella
  • welshfella
x^4 / x^2 = x^(4-2) = x^2
anonymous
  • anonymous
my guess (but with good reason) is 1 / 12x4
welshfella
  • welshfella
you subtract the indices (exponents is another word for them)
anonymous
  • anonymous
Ah.
welshfella
  • welshfella
well your x^4 is correct because x^7 / x^3 = x^(7-3) = x^4
anonymous
  • anonymous
ok
anonymous
  • anonymous
thanks
welshfella
  • welshfella
but we dealt with the numbers earlier on 12/12 = 1 the 12's disappear
anonymous
  • anonymous
right
welshfella
  • welshfella
so the final answer is 1 / x^4
welshfella
  • welshfella
do you understand ?
anonymous
  • anonymous
thanks bro. it was a multiple choice with the choces being 12x4, 1/12x4, 1/12x-4
welshfella
  • welshfella
well its none of those

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