1. Warm Up 5-7

2. 5-7 Completing the Square
ET: When looking at standard form of a quadratic equation, how can you determine if completing the square is a good option?

3. Recall: Steps to completing the square: If a 1, divide everything by a
Isolate constant term
Add to both sides (do not square)
Rewrite left side as
Simplify right side
Take the square root of both sides (don’t forget on right)
Isolate x (will have 2 equations)

4. Example 1 Finding c to Complete the Square
Find the missing value to complete the square.

5. Example 2 Solving When Not a Perfect Square
Solve x2 + 4x + 3 = 0.

6. Example 3 Completing the Square when a 1
Solve 2x2 = -16x +18 .