1. Using the Quadratic Formula to Solve Quadratic Equations Section 7.5

2. Lehmann, Intermediate Algebra, 4ed Section 7.5Slide 2 The Quadratic Formula Proof of the Quadratic Formula The solutions of the quadratic equation are given by the quadratic formula: Formula

3. Lehmann, Intermediate Algebra, 4ed Solve Section 7.5Slide 3 The Quadratic Formula Quadratic Formula Common Error Warning Example

4. Lehmann, Intermediate Algebra, 4ed Section 7.5Slide 4 The Quadratic Formula Solving by Using the Quadratic Formula Solution

5. Lehmann, Intermediate Algebra, 4ed Solve Write in the form Section 7.5Slide 5 The Quadratic Formula Solving by Using the Quadratic Formula Example Solution

6. Lehmann, Intermediate Algebra, 4ed Write in the form Solution: Section 7.5Slide 6 The Quadratic Formula Solving by Using the Quadratic Formula Solution Continued

7. Lehmann, Intermediate Algebra, 4ed Solve Section 7.5Slide 7 The Quadratic Formula Solving by Using the Quadratic Formula Example Solution

8. Lehmann, Intermediate Algebra, 4ed Section 7.5Slide 8 The Quadratic Formula Solving by Using the Quadratic Formula ExampleSolution Continued

9. Lehmann, Intermediate Algebra, 4ed Solve Section 7.5Slide 9 Solving a Quadratic Equation That Has Imaginary-Number Solutions Solving by Using the Quadratic Formula Example Solution

10. Lehmann, Intermediate Algebra, 4ed Section 7.5Slide 10 The Quadratic Formula Solving by Using the Quadratic Formula ExampleSolution Continued