Evaluate
2\sqrt{73}\approx 17.088007491
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\sqrt{256+6^{2}}
Calculate 16 to the power of 2 and get 256.
\sqrt{256+36}
Calculate 6 to the power of 2 and get 36.
\sqrt{292}
Add 256 and 36 to get 292.
2\sqrt{73}
Factor 292=2^{2}\times 73. Rewrite the square root of the product \sqrt{2^{2}\times 73} as the product of square roots \sqrt{2^{2}}\sqrt{73}. Take the square root of 2^{2}.
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