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Anguyennn
 one year ago
Hello could I get some help with evaluating 2√5/√7
Anguyennn
 one year ago
Hello could I get some help with evaluating 2√5/√7

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kittiwitti1
 one year ago
Best ResponseYou've already chosen the best response.0\[2\sqrt{5}\sqrt{7}\text{ or }2\sqrt{5\sqrt{7}}?\]

Anguyennn
 one year ago
Best ResponseYou've already chosen the best response.0here ill draw it out for you

Anguyennn
 one year ago
Best ResponseYou've already chosen the best response.0dw:1442638593539:dw

Anguyennn
 one year ago
Best ResponseYou've already chosen the best response.0I want to know how to do it

triciaal
 one year ago
Best ResponseYou've already chosen the best response.1dw:1442646154332:dw

triciaal
 one year ago
Best ResponseYou've already chosen the best response.1rationalize the denominator to get rid of the radical in the denominator. means multiply by one expressed as shown square root of a number * square root of a number = that number

UnkleRhaukus
 one year ago
Best ResponseYou've already chosen the best response.1@triciaal is right \[\frac{2\sqrt 5}{√7}\\ =\frac{2\sqrt 5}{√7}\times1\\ \frac{2\sqrt 5}{√7}\times\frac{\sqrt7}{\sqrt7}\\ \frac{2\sqrt 5\times\sqrt7}{√7\times\sqrt7}\\ =\tfrac27\sqrt5\sqrt7\]

triciaal
 one year ago
Best ResponseYou've already chosen the best response.1I would end at (2 root 35)/7 to have only one radical
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