SOLUTION: Okay, The answer to my equation is sqrt 90. But it has to be simplified. So I have to factor out 90. so I have 2*3*3*5, so is my answer 3 sqrt 10??

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Question 261412: Okay, The answer to my equation is sqrt 90. But it has to be simplified. So I have to factor out 90. so I have 2*3*3*5, so is my answer 3 sqrt 10??
Found 2 solutions by jim_thompson5910, Edwin McCravy:
Answer by jim_thompson5910(35256)   (Show Source): You can put this solution on YOUR website!
You are correct.


As a basic check, use a calculator to get and which shows us that

Answer by Edwin McCravy(20086)   (Show Source): You can put this solution on YOUR website!
Yes.

The way to check that is to use a calculator to approximate 
it with a decimal:

Find  with a calculator, you'll get 9.486832981

Then find , you'll also get 9.48632981

Then you know you are right.

Edwin