Factoring 2-Factor out a negative GCF

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Taught by YourMathGal
  • Currently 4.0/5 Stars.
9288 views | 2 ratings
Part of video series
Meets NCTM Standards:
Lesson Description:

This is part 2 on factoring, and covers how to factor out a negative sign, and also how to recognize opposites such as a - b and b - a.

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

Questions answered by this video:
  • How do you factor out the greatest common factor of a polynomial?
  • How do you factor out a negative GCF?
  • What happens if the greatest common factor is negative?
  • How do you factor -6x + 9?
  • How do you factor a polynomial if the first term is negative?
  • How can you factor -9x^2 - 12x by taking out the GCF?
  • How do you know what goes in the parentheses when you factor a polynomial?
  • What does -16a^2b + 24ab^4 + 8ab factor into?
  • How do you factor a polynomial that has more than one variable?
  • How do you factor a polynomial by factoring out the negative greatest common factor?
  • How can you factor a -1 from a polynomial?
  • How do you factor -3x + 14?
  • What does 5x-8 become if you factor our a -1 from both terms?
  • How can you factor -3x-16?
  • How do you find the opposite of a polynomial such as 3x - 9?
  • What is an easy way of writing the opposite of the difference of binomials such as a - b?
  • Why does 7y - 8 = -1(8 - 7y)?
  • Staff Review

    • Currently 4.0/5 Stars.
    This lesson does a bunch more examples of factoring out the GCF. This time, however, the twist is that the GCF of the polynomials is negative. Also discussed is factoring out a -1 and switching all of the signs.