Evaluate
6\sqrt{15}\approx 23.237900077
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3\sqrt{2}\sqrt{30}
Factor 18=3^{2}\times 2. Rewrite the square root of the product \sqrt{3^{2}\times 2} as the product of square roots \sqrt{3^{2}}\sqrt{2}. Take the square root of 3^{2}.
3\sqrt{2}\sqrt{2}\sqrt{15}
Factor 30=2\times 15. Rewrite the square root of the product \sqrt{2\times 15} as the product of square roots \sqrt{2}\sqrt{15}.
3\times 2\sqrt{15}
Multiply \sqrt{2} and \sqrt{2} to get 2.
6\sqrt{15}
Multiply 3 and 2 to get 6.
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