Answer:
14
Step-by-step explanation:
You should always specify if you want an exact answer or a rounded one. I'll assume the former.
Prime Factors
Rule
For every 2 factors under the root sign, take 1 outside the root sign and throw the other one away.
Solution
[tex]\sqrt{2 * 2 * 7 *7}[/tex]
2 * 7 * √1
14