Answer:

Step-by-step explanation:
The given equation is 
Group similar terms to get:


Square both sides to obtain:


Add 6 to both sides

Simplify the right hand side to obtain;

 
        
             
        
        
        
-3 x -26 = 78
meaning the answer is D. 
The reason the answer is D, is because two negatives when multiplied or divided become positive. Only when multiplied or divided does this occur.
        
             
        
        
        
Answer:
107%
Step-by-step explanation:
Round up all possible algorithms
 
        
             
        
        
        
Answer:
0.25 = 2^-2
The "^" means that -2 is an exponent on top of 2.