There are the same because 4/8 is rudeced to 1/2
Answer:

Step-by-step explanation:
Given equation:

Solutions: -9 and 9
To solve for 
Solution:
The solutions of the equation means
and 
We will plugin the solutions in the equation and solve for 
1) when 


Subtracting both sides by 81.

∴ 
2) when 


Subtracting both sides by 81.

∴ 
So, for both solutions we get 
Answer:
Tangent segment ? I think. I don't know for sure because of the way you wrote the question- I got a bit confused.