12 \sqrt{ 20 } (6 \sqrt{ 5) }
Evaluate
720
Factor
2^{4}\times 3^{2}\times 5
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12\sqrt{5}\sqrt{4}\times 6\sqrt{5}
Factor 20=5\times 4. Rewrite the square root of the product \sqrt{5\times 4} as the product of square roots \sqrt{5}\sqrt{4}.
12\times 5\times 6\sqrt{4}
Multiply \sqrt{5} and \sqrt{5} to get 5.
60\times 6\sqrt{4}
Multiply 12 and 5 to get 60.
360\sqrt{4}
Multiply 60 and 6 to get 360.
360\times 2
Calculate the square root of 4 and get 2.
720
Multiply 360 and 2 to get 720.
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