simplify. \n\\sqrt{20}

Explanation:

Step1: Factorize the number inside the square root

$$\sqrt{20}=\sqrt{4\times5}$$

Step2: Use the property (\sqrt{ab}=\sqrt{a}\times\sqrt{b})

$$\sqrt{4\times5}=\sqrt{4}\times\sqrt{5}$$

Step3: Simplify (\sqrt{4})

$$\sqrt{4}\times\sqrt{5}=2\times\sqrt{5}=2\sqrt{5}$$

Answer:

(2\sqrt{5})