anonymous
  • anonymous
Hello All! Would anyone mind helping me with rationalizing denominators?
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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chestercat
  • chestercat
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anonymous
  • anonymous
sure :)
anonymous
  • anonymous
Is there a specific formula for this?
anonymous
  • anonymous
well do u have an example problem? it would b easier to explain with one

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More answers

anonymous
  • anonymous
the first one is \[7/\sqrt{5}\]
anonymous
  • anonymous
the slash line is equivalent to a fraction, FYI :)
anonymous
  • anonymous
....
anonymous
  • anonymous
if you don't know it, that is fine.
anonymous
  • anonymous
ok so what you do is you multiply both the numerator and the denominator by the square root of 5. so you have 7*square root of 5 __________________ square root of 5* square root of 5. this gives you 7square root of 5 ________________ 5
anonymous
  • anonymous
does this help? sorry i dont know how to do the square root sign on here....
anonymous
  • anonymous
yes- you basically simplify the it to be 7\[\sqrt{5}/5\]
anonymous
  • anonymous
yep :) if u think i helped, then click the good answer button :)
anonymous
  • anonymous
hhaha thanks. how about this one: 8 OVER 3+ sqrt 7
anonymous
  • anonymous
hello?
anonymous
  • anonymous
\[\frac{8}{3+\sqrt{7}}=12-4 \sqrt{7} \]

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