Evaluate
\frac{26-8\sqrt{10}}{9}\approx 0.077975413
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\frac{52-16\sqrt{10}}{18}
Factor 2560=16^{2}\times 10. Rewrite the square root of the product \sqrt{16^{2}\times 10} as the product of square roots \sqrt{16^{2}}\sqrt{10}. Take the square root of 16^{2}.
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