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Answered 2010-07-12 18:58:25

Do the multiplication, then take the square root. After the multiplication, you get 28x4y2. The square root of 28 is 2 times the root of 7, the square root of x4 is x2, and the root of y2 is y. So, the final result is 2 Times Square root of 7, times x2y.

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