Khan Academy
Khan Academy: The Quadratic Formula: Using the Quadratic Formula
Demonstrates how to solve a quadratic equation using the quadratic formula.
Khan Academy
Khan Academy: The Quadratic Formula: Example 1: Using the Quadratic Formula
Demonstrates how to use the quadratic formula to solve a quadratic equation with a negative leading coefficient.
Khan Academy
Khan Academy: Algebra: Quadratic Formula Proof
Students learn how to derive the quadratic formula by completing the square. The video tutorial investigates the mathematics concept through detailed notes and examples.
Khan Academy
Khan Academy: Quadratic Odds and Ends: Quadratic Formula (Proof)
Deriving the quadratic formula by completing the square.
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.
Khan Academy
Khan Academy: The Quadratic Formula: Example 3: Using the Quadratic Formula
Explains how to determine the number of solutions a quadratic equation has based on the value of the discriminant.
Khan Academy
Khan Academy: Completing the Square: Example 2: Completing the Square
Using the completing the square to find the roots of the quadratic equation.
Khan Academy
Khan Academy: Completing the Square: Example 5: Completing the Square
Completing the Square to Solve Quadratic Equations.
Randy Thomas
Solving Quadratic Equations With Complex Solutions
This tutorial discusses solving quadratic equations using square roots, completing the square, and the quadratic formula. Problems which previously had no solution can now be solved with the inclusion of the complex number system....
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]
PatrickJMT
Patrick Jmt: Quadratic Formula
Easy to understand video tutorial shows how to use the quadratic formula to find solutions to quadratic equations. [6:21]
Khan Academy
Khan Academy: Factoring Quadratics: Factoring Special Products
Explore Factoring Special Products through this video.
Khan Academy
Khan Academy: Algebra: Using the Quadratic Formula
Video shows how to use the quadratic formula to solve quadratic equations. The solutions to one example are verified by graphing the associated quadratic function. Includes link to additional practice problems. [16:32]
Khan Academy
Khan Academy: The Quadratic Formula: Applying the Quadratic Formula
This video shows an application problem with Quadratic Formula.
Khan Academy
Khan Academy: The Quadratic Formula: Example: Quadratics in Standard Form
Identifies the standard form of a quadratic equation and models how to put a given quadratic equation into standard form
Khan Academy
Khan Academy: Quadratic Odds and Ends: Quadratic Equation Part 2
A video showing examples of solving equations using the quadratic equation.
Khan Academy
Khan Academy: The Quadratic Formula: How to Use the Quadratic Formula
Introduction to using the quadratic formula.
Sophia Learning
Sophia: Solving an Equation Using the Quadratic Formula #4
Using the quadratic formula with terms that include trigonometric expressions is shown here.
Sophia Learning
Sophia: Solving an Equation Using the Quadratic Formula #6
Using the quadratic formula with terms that include trigonometric expressions is shown here.
Sophia Learning
Sophia: Solving an Equation Using the Quadratic Formula #7
Using the quadratic formula with terms that include trigonometric expressions is shown here.
Sophia Learning
Sophia: Solving an Equation Using the Quadratic Formula
Using the quadratic formula with terms that include trigonometric expressions is shown here. [3:03]