Answer:x^2 + 9x + 20
Step-by-step explanation:
You could just multiply (x+4)(x+5) and get x^2 + 9x + 20, but judging from the picture, it looks like they want you to split it into 4 rectangles
x^2 +4x+ 5x + 20 =x^2 +9x + 20, just like (x+4)(x+5) 
 
        
             
        
        
        
Answer:
2. trust me.. i did it before.
 
        
                    
             
        
        
        
The conjecture is each term is the corresponding Roman numeral of the precious term
        
             
        
        
        
Answer:
2
Step-by-step explanation: