Answer:
Solid dot on -7 with the line going to the right towards 0
Step-by-step explanation:
 
        
             
        
        
        
Answer:
18
Step-by-step explanation:
 
        
             
        
        
        
Let's take an example to illustrate this case:
<span>positive fraction = 2/7
</span>
<span>negative fraction = - 3/5
Now we need to subtract  </span><span>- 3/5 from 2/7
Right?
2/7 - (-3/5) = 2/7 + 3/5
here we need to unify the denominators as follows:
the lowest common factor between 7 and 5 is 35
2/7 = 10/35
3/5 = 21/35
Now back to </span><span>2/7 + 3/5:
</span><span><span>2/7 + 3/5 = 10/35 + 21/35 = (10+21)/35 = 31/35
That's it
Hope that helps you</span> 
</span>
        
             
        
        
        
X^3 + h^3 - 3x-3h - x^3 +3x              h^3 - 3h              h^2 - 2h
-------------------------------------   =  ------------------   = 
                h                                         h
        
             
        
        
        
Answer:
(-∞,∞)
Step-by-step explanation:
It is positive for all x