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.
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: 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: Using the Quadratic Formula: Lesson 10
This lesson describes how to use the quadratic formula to determine the solution of a quadratic equation in a specific format. It is 10 of 16 in the series titled "Using the Quadratic Formula."
Sophia Learning
Sophia: Using the Quadratic Formula: Lesson 13
This lesson describes how to use the quadratic formula to determine the solution of a quadratic equation in a specific format. It is 13 of 16 in the series titled "Using the Quadratic Formula."
Sophia Learning
Sophia: Solving an Equation Using the Quadratic Formula #5
Using the quadratic formula with terms that include trigonometric expressions is shown here.
Sophia Learning
Sophia: Quadratic Formula and Complex Numbers
Explains how complex numbers are related to the quadratic formula, in particular talks about the determinant of the quadratic formula being a negative.
Sophia Learning
Sophia: Quadratic Formula and Complex Numbers
Explains how complex numbers are related to the quadratic formula, in particular talks about the determinant of the quadratic formula being a negative.