Main content
Course: Algebra (all content) > Unit 9
Lesson 7: The quadratic formula- The quadratic formula
- Understanding the quadratic formula
- Using the quadratic formula
- Worked example: quadratic formula
- Worked example: quadratic formula (example 2)
- Worked example: quadratic formula (negative coefficients)
- Quadratic formula
- Using the quadratic formula: number of solutions
- Number of solutions of quadratic equations
- Proof of the quadratic formula
- Quadratic formula review
- Discriminant review
- Quadratic formula proof review
© 2024 Khan AcademyTerms of usePrivacy PolicyCookie Notice
Worked example: quadratic formula (example 2)
Sal solves the equation -x^2+8x=1 by first bringing it to standard form and then using the quadratic formula. Created by Sal Khan and Monterey Institute for Technology and Education.
Want to join the conversation?
No posts yet.