Need Algebra help (QUICK)

Question 1.1. Factor.

x2 – 6x + 9 

 
 

Question 2.2. Which trinomial is a perfect square trinomial? 

 
 

Question 3.3. Factor.

m2 – 16m + 64 

 
 

Question 4.4. Factor.

x2 + 8x + 16

 
 

Question 5.5. Factor completely.

4u2 – 20u + 25 

(Points : 1)