SOLUTION: Could you please explain how to do the following: 7 square root a - square root 8a + 9square root 9a - square root 32a i know the answer is 34square root a - 6square root 2a bu

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Question 839196: Could you please explain how to do the following:
7 square root a - square root 8a + 9square root 9a - square root 32a
i know the answer is 34square root a - 6square root 2a but no idea how to work it out
Answer by mananth(16946) About Me  (Show Source):
You can put this solution on YOUR website!
7 square root a - square root 8a + 9square root 9a - square root 32a
i know the answer is 34square root a - 6square root 2a but no idea how to work it out
7%2A+sqrt%28a%29-sqrt%288a%29%2B9sqrt%289a%29-sqrt%2832a%29

7sqrt%28a%29-2sqrt%282a%29%2B9%2A3sqrt%28a%29-4sqrt%282a%29
34+sqrt%28a%29-6sqrt%282a%29