SOLUTION: I am totally confused with this problem: 21 / sqrt 2b 21 divided by the square root of 2b

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Question 876515: I am totally confused with this problem:
21 / sqrt 2b
21 divided by the square root of 2b
Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
What about it?
21%2Fsqrt%282b%29
You could rationalize the expression:
%2821%2Fsqrt%282b%29%29%28sqrt%282b%29%2Fsqrt%282b%29%29
21%2Asqrt%282b%29%2F2b

No other simplifications possible.