Multiplying Polynomials 5

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Taught by YourMathGal
  • Currently 4.0/5 Stars.
7610 views | 1 rating
Part of video series
Meets NCTM Standards:
Lesson Description:

Part 5 of Multiplying Polynomials covers the special product of multiplying (a + b)(a - b) to get the difference of two squares.

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

Questions answered by this video:
  • How do you multiply two binomials?
  • What are some methods for multiplying binomials?
  • How do you multiply (2x + 3)(2x - 3)?
  • How do you multiply (m - 4)(m + 4)?
  • How do you multiply (a + b)(a - b)?
  • How do you know if the middle terms will cancel out when you multiply two binomials together?
  • What are the FOIL and smiley face methods for multiplying binomials?
  • What is the formula for a difference of squares?
  • When do you get a binomial as a product when you multiply two binomials together?
  • How do you multiply (3x + 4)(3x - 4) using the box method?
  • How can you multiply two binomials using the difference of squares formula?
  • How do you multiply (F + L)(F - L)?
  • How do you multiply (m^2 - 3)(m^2 + 3) using the difference of squares formula?
  • How do you multiply (b^3 - 5)(b^3 + 5) using the difference of squares formula?
  • How do you multiply (x + 7)(x - 7) using the difference of squares formula?
  • What is a special binomial product?
  • Staff Review

    • Currently 4.0/5 Stars.
    This lesson shows multiple examples of multiplying binomials of the form (a + b)(a - b) that end up resulting in a difference of squares that look like a^2 - b^2 because the middle term cancels out. There is a lot of repetition, which should drive home the point of this video.