SOLUTION: Hi, my problem is to simplify the following: sqrt(28)-sqrt(63)+5sqrt(7)

Algebra ->  Square-cubic-other-roots -> SOLUTION: Hi, my problem is to simplify the following: sqrt(28)-sqrt(63)+5sqrt(7)      Log On


   

Question 704393: Hi, my problem is to simplify the following:
sqrt(28)-sqrt(63)+5sqrt(7)
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
simplify the following:
sqrt(28)-sqrt(63)+5sqrt(7)
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Hint:
28 = 4*7
63 = 9*7