SOLUTION: simplify sqrt of 7(9 sqrt of 2 - 3 sqrt of 7)

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Question 48239: simplify
sqrt of 7(9 sqrt of 2 - 3 sqrt of 7)
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
(sqrt of 7)(9 sqrt of 2 - 3 sqrt of 7)
= (sqrt7)(9sqrt2 - 3sqrt7)
=9sqrt14 -3(7)
=9sqrt14-21
Cheers,
Stan H.