Factoring 15a - Difference of 2 Squares

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Taught by YourMathGal
  • Currently 4.0/5 Stars.
7510 views | 2 ratings
Part of video series
Meets NCTM Standards:
Lesson Description:

Covers the formula for the factoring the difference of two squares, including examples.

More free YouTube videos by Julie Harland are organized at http://yourmathgal.com

Questions answered by this video:
  • How do you factor the difference of two squares?
  • What is the difference of two squares?
  • What happens when you multiply or foil (2x - 3)(2x + 3)?
  • Why is 4x^2 - 9 the difference of two squares?
  • How do you factor 4x^2 - 9?
  • What is the formula for the difference of two squares?
  • Why does a^2 - b^2 = (a + b)(a - b)?
  • How do you factor m^2 - 16y^2 using the difference of squares formula?
  • How do you know what to put in parentheses when you use the difference of squares formula?
  • How do you factor x^2 - 36?
  • How do you factor y^2 + 49?
  • What is the sum of two squares?
  • Why can you not factor the sum of 2 squares?
  • How do you factor 2x^2 - 18?
  • What is the first step when you factor a polynomial?
  • How do you factor m^6 - x^16?
  • How do you factor x^8 - 16 using the difference of two squares formula?
  • How do you know if you are done factoring when factoring a difference of squares?
  • How can you factor (x^2 + 4)(x^2 - 4) even more?
  • Staff Review

    • Currently 4.0/5 Stars.
    This video does a great job of explaining where the difference of two squares comes from and how to factor a difference of two squares. Some really interesting problems are shown in this lesson.
  • Nikkweiser

    • Currently 5.0/5 Stars.
    Explains difference of squares and gives great examples of how to recognize difference of squares and examples of not a differnce of squares