The last one is the last correct answer that needs to be checked!!
        
             
        
        
        
(x-8)(x+5)
First thing you do is put the X's into the parentheticals because it is x^2 meaning there are 2 factors with x's. Then, you wonder what factors of -40 could add to get -3. In this case, they are -8 and 5. -8 times 5 is -40 and -8 +5 is -3. Then, you just add -8 and 5 beside the x's in the parentheticals. 
 
        
                    
             
        
        
        
Answer:
1. Yes
2. Yes
3. Yes
4. No 
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer:correct answers
Step-by-step explanation:
 
        
             
        
        
        
3-2y-8x is it's most simplified form I think.