Evaluate
10\sqrt{7}\approx 26.457513111
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2\times 5\sqrt{7}
Factor 175=5^{2}\times 7. Rewrite the square root of the product \sqrt{5^{2}\times 7} as the product of square roots \sqrt{5^{2}}\sqrt{7}. Take the square root of 5^{2}.
10\sqrt{7}
Multiply 2 and 5 to get 10.
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