√105 is written in simplest form already.
 The answer would be D. √105
 
        
             
        
        
        
2.factor I don't know the rest
 
        
             
        
        
        
Answer:
Step-by-step explanation:
See attached file for answer pls
 
        
             
        
        
        
Answer:

Step-by-step explanation:
The expression given can be rewritten as:
 
 
Because +(-n) is just -n. Then, combine like terms to get:

Substitute  for x to get:
 for x to get:

Which can be rewritten as:

Which is:
 .
.  as a mixed number
 as a mixed number
Hope this helps :)
 
        
             
        
        
        
Step-by-step explanation:
2/3 x - 1/9 x + 5 = 20
6/9 x - 1/9 x = 15
5/9 x = 15
x = 15 * (9/5) = 27.