Answer:
a = 8
Step-by-step explanation:
8 + 3 + 1 - 4 = 3a - 2a
8 = a 
a = 8
I hope this helps a little bit.
 
        
                    
             
        
        
        
Answer
777
Step-by-step explanation:
jnimimimimimim000
 
        
                    
             
        
        
        
The factorization: (x-9) (x+12) (AC method) 
X intercepts: (9,0), (-12,0)
Y intercepts: (0, -108)
        
             
        
        
        
3x (4x^4-5x)
add all of the numbers with a x to get
12x^4
and 12x^4=
20736x