4, -8 
add the x's and add the y's
        
             
        
        
        
Can you post the scale drawing please so I can help you
        
                    
             
        
        
        
1. You have that:
 - The<span> lengths of the bases are (6x-1) units and 3 units.
 - The midsegment has a length of (5x-3) units.
 2. To solve this exercise, you must apply the formula for calculate the length of the midsegment of a trapezoid, which is shown below:
 Midsegment=Base1+Base2/2
 As you can see, the midsegment is half the sum of the bases of the trapezoid.
 3. When you substitute the values, you obtain:
 (5x-3)=[(6x-1)+3]/2
 4. Now, you can solve the problem by clearing the "x":
</span>
 (5x-3)=[(6x-1)+3]/2
 2(5x-3)=6x-1+3
 10x-6=6x+2
 10x-6x=2+6
 4x=8
 x=8/4
 x=2
        
             
        
        
        
You have to distribute the exponent of 4 to the whole equation. 
so step one is to distribute to the 3
3^4= 81
then we have to distribute to the x
x^4
then to the 2
2^4= 16
81 * x^4 * 16
* = multiplication sign