6.1)
 Simplify the expressions as much as possible: 
       
-                                                                                                                                                                                                                                            a)  
 -        
 -   b)  
 -        
 -   c)  
 -        
 
  
      
 6.2)
 Simplify the expressions as much as possible:  
                                                                                                                                                                                                                                                        
-   a)  
 -        
 -   b)  
 -        
 -   c)  
 -        
 -   d)  
 -                                                                                                                                                                                                                                                 
 -   e)  
 -  
 -  f)
 -       
 
           
-   a)  
 -        
 -   b)  
 -                                                                                                                                                                                                                                                 
 -   c)  
 -        
 -   d)  
 -        
 -   e)  
 -        
 -    f)  
 -        
 
                                                                                                                                                                                                                                             
      
 6.3)
 Simplify the expressions as much as possible:  
               
-   a)  
 -        
 -   b)  
 -        
 -                                                                                                                                                                                                                                            c)  
 -        
 -   d)  
 -  
 -  e)
 -       
 
                  
-                                                                                                                                                                                                                                            a)  
 -        
 -   b)  
 -        
 -   c)  
 -        
 -   d)  
 -  
 -  e)
 -       
 
                                                                                                                                                                                                                                              
      
 6.4)
 Calculate if possible or write as a single power: 
       
-   a)  
 -        
 -   b)  
 -        
 -                                                                                                                                                                                                                                            c)  
 -        
 
  
      
 6.5)
 Simplify as much as possible:  
        
-   a)  
 -                                                                                                                                                                                                                                                 
 -   b)  
 -        
 -   c)  
 -        
 -   d)  
 -        
 
                 
-                                                                                                                                                                                                                                            a)  
 -        
 -   b)  
 -        
 -   c)  
 -  
 -  d)
 -       
 
                                                                                                                                                                                                                                              
      
 6.6)
 Simplify as much as possible:  
        
-   a)  
 -        
 -   b)  
 -        
 -   c)  
 -        
 
                                                                                                                                                                                                                                                          
-   a)  
 -        
 -   b)  
 -  
 -  c)
 -       
 
                                                                                                                                                                                                                                                  You can find the solutions here.