Learn how to factor out the greatest common factor (GCF).

In this video, we are going to look at how to factor out the greatest common factor.

For example:

To factor:

we can factor out a variable, *x*, by dividing it out of each term, leaving us with

To factor:

the largest number we can pull out from all of the terms is 3, and the largest variable is . So if we factor out then we would be left with

To factor:

the largest number that can be pulled out is 4, the largest variable in terms of *x* is , and the largest variable in terms of *y* is just *y*. So if we factor out then we would be left with

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