Quadratic Equations – The Sequel 1 Quadratic Formula 2 Discriminants 3 Using the Quadratic Formula www.themegallery.com
Quadratic Formula www.themegallery.com
Discriminants of a Quadratic Equation • The number b2-4ac under the radical sign is called the discriminant www.themegallery.com
Using the Quadratic Formula • Solve 9x2 – 30x + 25 = 0 www.themegallery.com
Using the Quadratic Equation…Again • Solve 2x(3 – x) = 3 • Beware! Do NOT try to solve this using the zero factor rule!!!
Using the Quadratic Formula on Word Problems www.themegallery.com
Using the Quadratic Formula on Word Problems (Cont.) www.themegallery.com
Practice Problems • Page 91 Problems 31-44, 56-58, 62 www.themegallery.com