anonymous
  • anonymous
This question has something to do with quotient rule and simplify. Write your answer in positive exponents.
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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schrodinger
  • schrodinger
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anonymous
  • anonymous
3k^2l^-8/6k^7l^-2
anonymous
  • anonymous
|dw:1442358587704:dw| this?
zepdrix
  • zepdrix
I think it's this:\[\large\rm \frac{3k^{2}\ell^{-8}}{6k^{7}\ell^{-2}}\]

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anonymous
  • anonymous
correct
anonymous
  • anonymous
now how do i do this
anonymous
  • anonymous
please explain all steps because i will be offline. thank you so much for having the time to help me solve this
anonymous
  • anonymous
Okay.. I know you can simplify that because of the 3/6 and the -8/-2. They both can be simplified. I think you can also simplify the k2 and k7... but let's see. Three and six is easy, you cancel out the 3 and divide 6 by 3, you end up with 1 and 2 right? Move on to the next part. k2 and k7, I believe you can cancel out the k2 and take k2 off of k7 and that leaves you with just k5 in the denominator.. -8 and - 2.. they can divide. Cancel out the -2 with -2 and divide -8 by -2. That leaves you with l^4 in the numerator. Does this sound about right..?
anonymous
  • anonymous
yes i does sound right im checking right now
zepdrix
  • zepdrix
Woooops! Subtraction Rule of Exponents:\[\large\rm \color{royalblue}{\frac{x^a}{x^b}=x^{a-b}}\]
zepdrix
  • zepdrix
\[\large\rm \frac{\ell^{-8}}{\ell^{-2}}=\ell^{-8-(-2)}\]
anonymous
  • anonymous
wow thank you so much that is absolutly right
zepdrix
  • zepdrix
k5 sounds right though :) 2-7 = -5 leaving it in the denominator.
anonymous
  • anonymous
so it is 1/2k^5l^6
anonymous
  • anonymous
From the looks of it it's just l^4 over k5..
zepdrix
  • zepdrix
\[\large\rm =\frac{1}{2k^5\ell^{6}}\]Ya this sounds right :)
zepdrix
  • zepdrix
Rheaaaa >.< I'm confused why you applied `subtraction` to the 2 and 7, but `division` to the -8 and -2 ... hmm weird.
anonymous
  • anonymous
Oh wait. Wait goodness lol I just noticed that mistake thank you for pointing it out.

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