SOLUTION: square root of 7 ( 9square root of 2 minus 3 square root of 7)

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Question 305499: square root of 7 ( 9square root of 2 minus 3 square root of 7)
Answer by checkley77(12844) About Me  (Show Source):
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square root of 7 ( 9square root of 2 minus 3 square root of 7)
sqrt7(9sqrt2-3sqrt7)
9sqrt14-3sqrt49
9sqrt14-3*7
9sqrt14-21
3(3sqrt14-7) ans.