Evaluate
10\sqrt{15}\approx 38.729833462
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2\sqrt{5}\sqrt{15}\sqrt{5}
Factor 75=5\times 15. Rewrite the square root of the product \sqrt{5\times 15} as the product of square roots \sqrt{5}\sqrt{15}.
2\times 5\sqrt{15}
Multiply \sqrt{5} and \sqrt{5} to get 5.
10\sqrt{15}
Multiply 2 and 5 to get 10.
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