Solving Quadratic Equations
11th Grade · Math · 55 min· Big Ideas Math
Lesson Preview
Learning Objective
I can solve quadratic equations using factoring, completing the square, and the quadratic formula.
- 1
Three common methods for solving quadratic equations are factoring, completing the square, and using the quadratic formula.
- 2
Factoring involves rewriting a quadratic expression as a product of two linear expressions, and setting each factor equal to zero to find the solutions.
- 3
The quadratic formula, x = (-b ± √(b² - 4ac)) / 2a, can be used to solve any quadratic equation, and the discriminant, b² - 4ac, indicates the nature of the roots.
