Hi,
Work:
Equation;

Factor out 2x from expression.

Use commutative property to reorder yc.

Hope this helps.
r3t40
 
        
        
        
Step-by-step explanation:
10 is the value of A ......
 
        
                    
             
        
        
        
Alright, so since I don't have an example question, I will make one up. 
there are 8 coins in total. there are 6 dimes. What is the fraction of dimes to coins. 
you would put the amount of dimes on the top and the total on the bottom.
Answer: 6/8 which can be simplified to 3/4
Or another Example:
There are 12 pieces in the pizza. Billy took 4. what is the fraction of the slices left.
it would be 4-12= 8
Answer: 8/12 which can be simplified to 4/6 and then to 2/3
Hope that helped.
        
                    
             
        
        
        
Difference of two squares is of the form (a + b)(a - b) or vice-versa. Here, a = -5x and b = 3.
(-5x - 3)(-5x + 3)
Answer: 3