Answer:
Factored form: 2x(2x^2+x+1)
Step-by-step explanation:
You're subtracting them. :) 
 
        
                    
             
        
        
        
Answer:

2. option D
3. option C
4. option D
5. option C
6. option B
7. option C
8. option D 
9. option C
10. option C
Step-by-step explanation:
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<h3>Hope it is helpful...</h3>
 
        
             
        
        
        
Answer:
x=-2
Step-by-step explanation:
5x -10x- 30= 10x
-5x -30 = 10x
-30=15x
x=-2