-z³ + 5k^6 + z³ -10k^6
(-z³ cancels out with z³)
5k^6 -10k^6
(then subtract)
Answer is -5k^6
        
             
        
        
        
You can use the trigonometric identity  

.

The requirement that 

 eliminates -1/6 from being another solution.
 
        
        
        
Answer:
a is greater by 25
Step-by-step explanation:
if a=100
then,100-50=50-25=25
so same way= a is greater by 25
 
        
             
        
        
        
Answer:
48
Step-by-step explanation:
  24
+<u>24</u>
  48
- First, line up the numbers and write down the subtracting symbol or addition symbol.
- Second, add the ones place
- Then, add the tens place
- If numbers go onto the hundreds place then add that but if not then your done.
 
        
             
        
        
        
Answer:
This doesn't make since.
Step-by-step explanation: