The value of √8 + √18 is:

Correct option is C

Given:

$$\sqrt{8} + \sqrt{18}$$​​

Solution:

​$$\sqrt{8} + \sqrt{18}\\= \sqrt{(4 \times 2)} + \sqrt{(9 \times 2)}\\= 2 \sqrt{2} + 3 \sqrt{2}\\= \sqrt{2} (2 + 3) \text{Taking } \sqrt{2} \text{ common from both}\\= \sqrt{2} \times 5\\= 5 \sqrt{2}$$​​