Evaluate
18
Factor
2\times 3^{2}
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\sqrt{9}\sqrt{9}\sqrt{2}\sqrt{2}
Factor 18=9\times 2. Rewrite the square root of the product \sqrt{9\times 2} as the product of square roots \sqrt{9}\sqrt{2}.
9\sqrt{2}\sqrt{2}
Multiply \sqrt{9} and \sqrt{9} to get 9.
9\times 2
Multiply \sqrt{2} and \sqrt{2} to get 2.
18
Multiply 9 and 2 to get 18.
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