# How do you simplify 18

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## Answered question

2021-12-12

How do you simplify $\sqrt{18}$

### Answer & Explanation

$\sqrt{18}=\sqrt{3\times 3\times 2}=\sqrt{9\times 2}=3\sqrt{2}$

Prime factorise the number

$\sqrt{18}=\sqrt{9\times 2}=\sqrt{3\times 3\times 2}=\sqrt{3}\times \sqrt{3}\times \sqrt{2}=3\sqrt{2}$

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