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nenadmatematika Group TitleBest ResponseYou've already chosen the best response.0
=2 square roots of 5
 2 years ago

vengeance921 Group TitleBest ResponseYou've already chosen the best response.1
\[\sqrt{20}=\sqrt{2*2*5}=2\sqrt{5}\]
 2 years ago

vengeance921 Group TitleBest ResponseYou've already chosen the best response.1
Okay so steps to simply would be: First, we have a number: \[\sqrt{20}\] So, check how can you factor 20 20=2*2*5 right? So, \[\sqrt{20}=\sqrt{2*2*5}\] Since 2 is repeating (2x2x52 is 2 times) We take it out, since \[\sqrt{2*2*5}=\sqrt{2*2}*\sqrt{5}\] Which is same as: \[\sqrt{2*2*5}=\sqrt{4}*\sqrt{5}\] \[\sqrt{4}*\sqrt{5}=2\sqrt{5}\] Which is the final answer.
 2 years ago
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