Algebra-2

Question Analysis
This problem assesses the ability to solve a quadratic equation by completing the square.

Key Concept Explanation
To solve a quadratic equation by completing the square, we transform it into a perfect square trinomial and then use the square root property to find the solutions.

Step-by-step Solution
1. Start with the equation:
2. Move the constant term to the right side:
3. Add to both sides: