Quadratic Formula 1
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Lesson Summary:
Quadratic Formula 1 is the first part of solving quadratic equations in standard form using the quadratic formula. The lesson teaches students how to identify the values of A, B, and C to plug them into the formula. The video simplifies the quadratic formula by deriving B squared minus 4AC first and then plugging in the values for A, B, and C. Factoring is another method that students can use to find solutions. The lesson also emphasizes the importance of checking the solutions by plugging them back into the original equation.
Lesson Description:
Part 1 of using the quadratic formula to solve quadratic equations in standard form.
More free YouTube videos by Julie Harland are organized at http://yourmathgal.com
Questions answered by this video:
- What is the quadratic formula?
- How can you use the quadratic formula to solve quadratic equations?
- How do you use the quadratic formula to solve 5x^2 = 14x + 3?
- How do you move terms around to get an equation to look like ax^2 + bx + c = 0?
- How do you solve 5x^2 = 14x + 3 by factoring?
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Staff Review
This lesson shows you how to solve a quadratic equation using the quadratic formula. It also solves the same problem by factoring and it shows how to check the solution. This is a great place to start if you have just learned the quadratic formula and are trying to use it to solve quadratic equations. All steps involved in the process of solving and checking the problem are shown.
