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anonymous
 one year ago
Help with conjugates (Algebra 2B) equation and explanation in comments.
anonymous
 one year ago
Help with conjugates (Algebra 2B) equation and explanation in comments.

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anonymous
 one year ago
Best ResponseYou've already chosen the best response.0So 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
 one year ago
Best ResponseYou've already chosen the best response.1multiply times √5 on top and bottom

SolomonZelman
 one year ago
Best ResponseYou've already chosen the best response.1dw:1435785908571:dw

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Ok so the denominator would be 15 but how to I go about multiplying the numerator?

SolomonZelman
 one year ago
Best ResponseYou've already chosen the best response.16 × 5 = 30 same way, (√6) × (√5) = (√30)

SolomonZelman
 one year ago
Best ResponseYou've already chosen the best response.1dw:1435786199555:dw

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0It would just simplify to the square root of 30

SolomonZelman
 one year ago
Best ResponseYou've already chosen the best response.1And √30 can't be simplified, so you are done....
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