SOLUTION: what is 5 square root 20

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Question 90906: what is 5 square root 20
Answer by praseenakos@yahoo.com(507) About Me  (Show Source):
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Question:

what is 5 square root 20

Answer:

Hope your question is like this....

5%2Asqrt%2820%29

This can be written as, 5%2Asqrt%284%2A5%29

We know that sqrt%284%29= 2

==> +5+%2A+sqrt%284%29+sqrt%285%29 = +5+%2A+2+%2A+sqrt%285%29


==> = 10%2Asqrt%285%29, which is the simplified answer.


Again...if you need to evaluate the given expression you can take the value of sqrt%285%29 which is 2.236 approximately and can find out the answer...


That is 10%2Asqrt%285%29 = 10 * 2.236 = 22.36 approximately.


Hope you found the explanation useful.


Regards.

Praseena.