Evaluate
40\sqrt{17}\approx 164.924225025
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\sqrt{25600+40^{2}}
Calculate 160 to the power of 2 and get 25600.
\sqrt{25600+1600}
Calculate 40 to the power of 2 and get 1600.
\sqrt{27200}
Add 25600 and 1600 to get 27200.
40\sqrt{17}
Factor 27200=40^{2}\times 17. Rewrite the square root of the product \sqrt{40^{2}\times 17} as the product of square roots \sqrt{40^{2}}\sqrt{17}. Take the square root of 40^{2}.
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