SOLUTION: please simplify the radical. 5 square roots of a half - 2 square roots of an eighth.

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Question 213404: please simplify the radical.

5 square roots of a half - 2 square roots of an eighth.
Found 2 solutions by Alan3354, shymeerab:
Answer by Alan3354(69443) About Me  (Show Source):
Answer by shymeerab(21) About Me  (Show Source):
You can put this solution on YOUR website!
5(1/2)^(1/2)-2(8)^(1/2)
=5/(2^(1/2))-2(8)^(1/2)
=(5-2(2)^(1/2)(8)^(1/2))/2^(1/2)
=(5-2(16)^(1/2))/2^(1/2)
=((5-2*4)/2^(1/2))
=(5-8)/2^(1/2)
=-3/2^(1/2)