Khan Academy
Khan Academy: Algebra: Ca Algebra I: Completing the Square
Demonstrates solutions to problems #48-52 of California Algebra I released state test questions. Problems address understanding of solving quadratic equations by factoring and completing the square. Practice problems available. [13:48]
Khan Academy
Khan Academy: Algebra: Quadratic Formula (Proof)
Explains how to derive the quadratic formula by completing the square on the standard form of a quadratic equation. [7:34]
Khan Academy
Khan Academy: Algebra: Proof of Quadratic Formula
Demonstrates how to derive the quadratic formula from the standard form of a quadratic equation by completing the square. This video also appears in the Algebra: ck12.org strand. [7:44]
Khan Academy
Khan Academy: Algebra: Ca Algebra I: Quadratic Equation
Demonstrates solutions to problems #53-57 of California Algebra I released state test questions. Problems address an understanding of solving quadratic equations by completing the square and the quadratic formula. [10:14]
Khan Academy
Khan Academy: Algebra: Solving Quadratic Equations by Completing the Square
Explains how to solve two different quadratic equations using the completing the square method. [14:06]
Khan Academy
Khan Academy: Algebra: Completing the Square
Students learn how to solve quadratics by completing the square. The video tutorial investigates the mathematics concept through detailed notes and examples.
Khan Academy
Khan Academy: The Quadratic Formula: Proof of Quadratic Formula
Demonstrates how to derive the quadratic formula from the standard form of a quadratic equation by completing the square.
Khan Academy
Khan Academy: Quadratic Odds and Ends: Quadratic Equation
This video demonstrate an understanding of solving quadratic equations by completing the square and using the quadratic formula.
Sophia Learning
Sophia: Completing the Square
Students learn how to complete the square to solve quadratic equations. Notes, examples, and a video lesson explore the math concept.
Khan Academy
Khan Academy: Quadratic Equations: Completing the Square for Vertex Form
A video about using the completing the square method to write a quadratic equation. [6:14]
Imagine Learning Classroom
Learn Zillion: Derive the Quadratic Formula: Completing the Square
In this lesson, you will learn how to derive the quadratic formula by completing the square. [6:01]
Khan Academy
Khan Academy: Identifying Quadratic Patterns
Determining whether a polynomial expression can be factored using the perfect square pattern or the difference of squares pattern (or neither). [5:50]
Khan Academy
Khan Academy: Worked Example: Completing the Square (Intro)
Sal completes the quadratic x-squared minus 44x into a perfect square. [3:21]
Sophia Learning
Sophia: Locating the Maximum and Minimum of a Parabola
This video tutorial describes how to determine if the vertex of a parabola is the minimum or maximum. The lesson includes a detailed example.