need algebra help quick 2

1. Find the greatest common factor: 30y8 + 10y4 

 
 

Question 2.2. Find the greatest common factor: 20x6y + 40x4y2 â€“ 10x5y5 

 
 

Question 3.3. Factor.

8x2 + 12x 

 
 


 
 


 
 


 
 

Question 4.4. Factor.

20mn â€“ 15n 

 
 


 
 


 
 


 
 

Question 5.5. Factor: 10x5 + 5x2 â€“ 15