Quadratic Formula 3

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Taught by YourMathGal
  • Currently 4.0/5 Stars.
6647 views | 1 rating
Part of video series
Meets NCTM Standards:
Lesson Description:

Part 3 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:
  • How do you use the quadratic formula to solve quadratic equations?
  • How do you solve (1/6)x^2 + x + 1/3 = 0 using the quadratic formula?
  • How do you solve (1/6)x^2 + x + 1/3 = 0 by completing the square?
  • How do you solve a quadratic equation if the leading coefficient is a fraction like 1/6?
  • How do you solve x^2 + 6x + 2 = 0 using the quadratic formula?
  • How do you solve x^2 + 6x + 2 = 0 by completing the square?
  • When is completing the square faster and easier than using the quadratic formula?
  • Staff Review

    • Currently 4.0/5 Stars.
    This lesson shows how to solve a quadratic equation by using the quadratic formula and then also by completing the square. All steps involved in both solving methods are explained. This also demonstrates that sometimes completing the square is actually faster than using the quadratic formula.