Algebra-2

Question Analysis
This problem tests the ability to solve a simple quadratic equation using the square root method. The key is to isolate and then apply the square root property.

Key Concept Explanation
The square root property states that if , then . In this case, the equation is already in the form , so we can directly apply the property.

Step-by-step Solution
1. Start with the given equation:
2. Add 169 to both sides to isolate