1. 2.4 Quadratic Equations – Factoring & Completing the Square

2. Example 1) Solve by factoring: 2 #s that mult to –20 1 & add to 5–4 set each factor = 0 Common factor first

3. Example 2) Solve by factoring: Diff of 2 squares OR Square Root Property:

4. Example 3) Solve: don’t forget!

5. Ex 4) Solve by Completing the Square Steps 1)Isolate constant 2)Factor leading coeff 3)Divide both sides by lead. coeff 4)Cut coeff on x in half, square it & add to both sides of = –1

6. Ex 4) Solve by Completing the Square Steps 5)Write L side as ( ) 2 6)Take square root of both sides don’t forget!

7. Ex 4) Solve by Completing the Square Steps 7) Solve for x

8. TOO Ex 5) Solve by Completing the Square

9. Homework #209 Pg. 128 1 – 35 odd & WS 5 – 7