Factoring out the GCF

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Taught by mrbrianmclogan
  • Currently 3.0/5 Stars.
5834 views | 1 rating
Part of video series
Meets NCTM Standards:
Errors in this video:

At about the 0:16 mark, the teacher says factoring out the greatest common denominator; he should have said the greatest common factor.

At about the 1:39 mark, after factoring out a 7x, the teacher writes xy for the first term in parentheses; it should be 2xy.

Lesson Summary:

In this lesson, we learn about factoring out the greatest common factor (GCF) of a set of terms. The teacher explains that the GCF is the largest number of variables that goes into every term that can be divided into every term. Through three examples, the teacher shows how to factor out the GCF by dividing out the common numbers and variables. The lesson ends with a reminder to check your work using the distributive property.

Lesson Description:

Factoring Blitz #1 - Factoring out common factors

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Questions answered by this video:
  • How do I factor using the Greatest Common Factor?
  • How do I factor 30-15y?
  • How do I factor14x^2y-35xy-63x?
  • How do I factor 5a(a+3b)+4(a+3b)?
  • Staff Review

    • Currently 3.0/5 Stars.
    This lesson shows 3 examples of factoring out the Greatest Common Factor from an expression.