Evaluate
5\sqrt{7}\approx 13.228756555
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\sqrt{5}\sqrt{5}\sqrt{7}
Factor 35=5\times 7. Rewrite the square root of the product \sqrt{5\times 7} as the product of square roots \sqrt{5}\sqrt{7}.
5\sqrt{7}
Multiply \sqrt{5} and \sqrt{5} to get 5.
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