Question

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simplify.
\sqrt{18}

Explanation:

Step1: Factor 18 into square factor

$18 = 9 \times 2$

Step2: Split square root into product

$\sqrt{18} = \sqrt{9 \times 2} = \sqrt{9} \times \sqrt{2}$

Step3: Simplify $\sqrt{9}$

$\sqrt{9} = 3$

Step4: Combine terms

$3 \times \sqrt{2} = 3\sqrt{2}$

Answer:

$3\sqrt{2}$