Evaluate
18\sqrt{7}\approx 47.623523599
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2\times 9\sqrt{7}
Factor 567=9^{2}\times 7. Rewrite the square root of the product \sqrt{9^{2}\times 7} as the product of square roots \sqrt{9^{2}}\sqrt{7}. Take the square root of 9^{2}.
18\sqrt{7}
Multiply 2 and 9 to get 18.
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