Khan Academy
How to Use the Quadratic Formula, Polynomial and Rational Functions, Algebra II
It's the video your algebra class has been waiting for - Sal explains the quadratic formula! He describes it as "one of at least the top five most useful formulas in mathematics" and recommends that it be memorized, provided one also...
Curated OER
How Do You Solve a Quadratic Equation by Using the Quadratic Formula?
Use an informative video on the quadratic equation to help math learners of all levels. Remember that if there is a solution, there will be two values. In word problems, it might be that only one of the values might answer the question....
Curated OER
What is the Quadratic Formula?
What do you do when you are trying to solve a quadratic equation and factoring and graphing aren't working out for you? Use the quadratic formula! Watch this video to find out exactly how to find your solutions with the quadratic...
Curated OER
How was the Quadratic Formula Derived?
If you or your class members are interested in how the quadratic formula is derived, then take a look at this video! The tutorial takes you through each step necessary to derive the quadratic formula from the general form for a quadratic...
Curated OER
How Can You Tell When a Quadratic Equations Has No Real Solutions by Using the Quadratic Formula?
Use the quadratic formula to solve a quadratic equation. Set the quadratic equation equal to zero. Identify the coefficient values and plug them in to the quadratic formula. Solve the equation. What? No solution. Really? Watch this video...
Curated OER
What is the Discriminant?
Introduce learners to the discriminant. The discriminant, used to find the number of real solutions to a quadratic equation, is part of the quadratic formula. The video shows where in the formula you can find it, and provides an example...
Curated OER
What is the Quadratic Formula?
What do you do when you are trying to solve a quadratic equation and factoring and graphing aren't working out for you? Use the quadratic formula! Watch this video to find out exactly how to find your solutions with the quadratic...
Curated OER
The Quadratic Formula - Algebra Help
I can never remember a formula. If you're like me, watch this video clip for a quick refresher on the quadratic formula. This could be a definite help at homework time, for homeschoolers, or prior to an exam.
Curated OER
What is the Discriminant?
Introduce learners to the discriminant. The discriminant, used to find the number of real solutions to a quadratic equation, is part of the quadratic formula. The video shows where in the formula you can find it, and provides an example...