Evaluate
4\sqrt{445}\approx 84.380092439
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\sqrt{64+7056}
Calculate 84 to the power of 2 and get 7056.
\sqrt{7120}
Add 64 and 7056 to get 7120.
4\sqrt{445}
Factor 7120=4^{2}\times 445. Rewrite the square root of the product \sqrt{4^{2}\times 445} as the product of square roots \sqrt{4^{2}}\sqrt{445}. Take the square root of 4^{2}.
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