anonymous
  • anonymous
Help with conjugates (Algebra 2B) equation and explanation in comments.
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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chestercat
  • chestercat
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anonymous
  • anonymous
So I need to rationalize the denominator and simplify but I don't know how I would go about that since I can't figure out the conjugate. \[\frac{ 15\sqrt{6} }{ 3\sqrt{5} }\]
SolomonZelman
  • SolomonZelman
multiply times √5 on top and bottom
SolomonZelman
  • SolomonZelman
|dw:1435785908571:dw|

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anonymous
  • anonymous
Ok so the denominator would be 15 but how to I go about multiplying the numerator?
SolomonZelman
  • SolomonZelman
6 × 5 = 30 same way, (√6) × (√5) = (√30)
SolomonZelman
  • SolomonZelman
|dw:1435786199555:dw|
anonymous
  • anonymous
It would just simplify to the square root of 30
SolomonZelman
  • SolomonZelman
yes
SolomonZelman
  • SolomonZelman
And √30 can't be simplified, so you are done....
anonymous
  • anonymous
ok thanks
SolomonZelman
  • SolomonZelman
yw

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