Evaluate
30\sqrt{5}\approx 67.082039325
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20\sqrt{5}+\sqrt{500}
Factor 2000=20^{2}\times 5. Rewrite the square root of the product \sqrt{20^{2}\times 5} as the product of square roots \sqrt{20^{2}}\sqrt{5}. Take the square root of 20^{2}.
20\sqrt{5}+10\sqrt{5}
Factor 500=10^{2}\times 5. Rewrite the square root of the product \sqrt{10^{2}\times 5} as the product of square roots \sqrt{10^{2}}\sqrt{5}. Take the square root of 10^{2}.
30\sqrt{5}
Combine 20\sqrt{5} and 10\sqrt{5} to get 30\sqrt{5}.
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