Solution - Simplifying square roots

Simplify :  sqrt(75) 

Factor 75 into its prime factors
           75 = 3 • 5² 

To simplify a square root, we extract factors which are squares, i.e., factors that are raised to an even exponent.

Factors which will be extracted are :
           25 = 5² 

Factors which will remain inside the root are :
           3 = 3 

To complete the simplification we take the squre root of the factors which are to be extracted. We do this by dividing their exponents by 2 :
           5 = 5 

The simplified SQRT looks like this:
         5 • sqrt (3)  

Simplified Root :