(solve)

Square both sides:





Get 0 on the left:

Switch sides:

Factor

Use the zero-factor principle:

 

Stanbon quit here, but you MUST check
radical equations for extraneous solutions:

Checking 







That checks.

Checking 







This does not check so we
must discard  as
an extraneous solution. The
only solution is .

-----------------------------

Use the rule 

.

Yes, you don't put on 7 zeros. You put on just enough
zeros so that you can move the decimal 7 places right.
You are to move the decimal of  7 places right.
There are only 2 decimal places showing so you will
need to put on 5 zeros so there will be 7 places. So you
consides  as  and then when you
move the decimal 7 places to the right, it will go at the
end and be invisible:

So  

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Use rational exponents to write xy small 5*y small 1|6 (1&6 are small numbers)*2 small 1|3 (1&3 are small numbers)

I think you meant this:



Write the  as 



Write  as 
Write  as 




Then multiply under the radicals:



Edwin