SOLUTION: Add or subtract. Then simplify by collecting like radical terms, if possible.
21sqrt5 - 13sqrt5
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Question 204609: Add or subtract. Then simplify by collecting like radical terms, if possible.
21sqrt5 - 13sqrt5
Answer by checkley77(12844) (Show Source): You can put this solution on YOUR website!
21sqrt5-13sqrt5
(21-13)sqrt5
8sqrt5 ans.
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