Evaluate
4\sqrt{41}\approx 25.61249695
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\sqrt{576+64+16}
Calculate 24 to the power of 2 and get 576.
\sqrt{640+16}
Add 576 and 64 to get 640.
\sqrt{656}
Add 640 and 16 to get 656.
4\sqrt{41}
Factor 656=4^{2}\times 41. Rewrite the square root of the product \sqrt{4^{2}\times 41} as the product of square roots \sqrt{4^{2}}\sqrt{41}. Take the square root of 4^{2}.
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