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\sqrt{2}\sqrt{2}\sqrt{36}=12
Factor 72=2\times 36. Rewrite the square root of the product \sqrt{2\times 36} as the product of square roots \sqrt{2}\sqrt{36}.
2\sqrt{36}=12
Multiply \sqrt{2} and \sqrt{2} to get 2.
2\times 6=12
Calculate the square root of 36 and get 6.
12=12
Multiply 2 and 6 to get 12.
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Compare 12 and 12.
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