Evaluate
2\left(\sqrt{269}-8\right)\approx 16.802438934
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2\sqrt{269}-\sqrt{256}
Factor 1076=2^{2}\times 269. Rewrite the square root of the product \sqrt{2^{2}\times 269} as the product of square roots \sqrt{2^{2}}\sqrt{269}. Take the square root of 2^{2}.
2\sqrt{269}-16
Calculate the square root of 256 and get 16.
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