1. Quadratic Equations – The Sequel1
Quadratic Formula 2
Discriminants 3
Using the Quadratic Formula

2. Quadratic Formula Steps
Get the equation in the quadratic form ax2+bx+c=0
Write the quadratic formula
Substitute for a, b, and c
Solve

3. The Song

4. The Song

5. Discriminants of a Quadratic Equation
The number found via b2-4ac under the radical sign is called the discriminant

6. Using the Quadratic Formula
Solve 9x2 – 30x + 25 = 0

7. Using the Quadratic Equation…Again
Solve 2x(3 – x) = 3
Beware! Do NOT try to solve this using the zero factor rule!!!

8. Using the Quadratic Formula on Word Problems

9. Using the Quadratic Formula on Word Problems (Cont.)