Evaluate
30\sqrt{5}\approx 67.082039325
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3\times 5\sqrt{2}\sqrt{2}\sqrt{5}
Factor 10=2\times 5. Rewrite the square root of the product \sqrt{2\times 5} as the product of square roots \sqrt{2}\sqrt{5}.
3\times 5\times 2\sqrt{5}
Multiply \sqrt{2} and \sqrt{2} to get 2.
15\times 2\sqrt{5}
Multiply 3 and 5 to get 15.
30\sqrt{5}
Multiply 15 and 2 to get 30.
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