Answer:
try Math
way 
Step-by-step explanation:
 
        
             
        
        
        
Answer:12
Step-by-step explanation:
4 by 3 
so 4x3=12
 
        
                    
             
        
        
        
Simplify 
9x^3 - 4x + 10 + x^3 + 10x - 9
Collect like terms
(9x^3 + x^3) + (-4x + 10x) + (10 - 9)
Simplify 
<u>10x^2 + 6x + 1</u>
 
        
             
        
        
        
I think the answer is that what i think