anonymous
  • anonymous
4 + SR of 27 Divided by 2-3 SR of 27
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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katieb
  • katieb
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anonymous
  • anonymous
hang on, need a pen
anonymous
  • anonymous
need the work or just the answer?
anonymous
  • anonymous
could you do the work?

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anonymous
  • anonymous
\[(4+\sqrt{27})/(2-\sqrt{27})\] multiply top and bottom by (2 + root27), then foil. this gives you a numerator of 8+6root27+27 and a denominator of 4-27, which simplifies to a numerator of 35+6root27 over -23, which again simplifies to 35+18root3, all over -23
anonymous
  • anonymous
if you need more specific expl, let me know
anonymous
  • anonymous
wow i got something a bit different for the numerator and denominator
anonymous
  • anonymous
what did you get?
anonymous
  • anonymous
i got 8+12root27 + 2root27+81 for the numerator
anonymous
  • anonymous
for the denominator i got 4-9root27
anonymous
  • anonymous
oh, ha, that's because i didn't see the 3 in the orig problem. sorry hang on, let me do it again.
anonymous
  • anonymous
your numerator is correct but needs to be simplified. your denominator is wrong - it should be 4-9*27, which is 4-81, which is -77
anonymous
  • anonymous
why the *?
anonymous
  • anonymous
that means multiply
anonymous
  • anonymous
the numerator simplifies down to 89+42root3
anonymous
  • anonymous
no i meant for the denominator
anonymous
  • anonymous
i know, it means its 4 minus 9times27
anonymous
  • anonymous
okay so hold on after i foil my number would simplify to 89+14root27. my denonimator would be 4-9*27?
anonymous
  • anonymous
not number, i meant numerator.
anonymous
  • anonymous
yes, and then that denominator is -77, and the numerator can be simplified further: root27 is 3root3, so 14root27 is 14*3root3 which is 42root3
anonymous
  • anonymous
oooooh i get it. so would 89+42root3 over -77 the answer or do i simpify even more?
anonymous
  • anonymous
yes, that's as far as you can go. you're done!
anonymous
  • anonymous
Thank so much :0]
anonymous
  • anonymous
Thank so much :0]
anonymous
  • anonymous
my pleasure!

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