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# Factoring by Grouping

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In this section, we review how to factor a four-term polynomial using factoring by grouping. With this method, our goal is to produce and factor out a common binomial factor. We begin the process by factoring out the GCF from the four-term polynomial. If the GCF is 1, we proceed to our next step. We then want to arrange our terms into two groups of two, such that each group has a common factor. In some cases, we may have to use a common factor of 1 or -1. We then factor out the GCF or –(GCF) from each group. We look to see if the result yields a common binomial factor. When this occurs, we factor out the common binomial factor and report our answer. In some cases, we fail to get a common binomial factor on the first try. When this occurs, we may be able to rearrange terms and try a different grouping.

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Khan Academy - Video Mario's Math Tutoring - YouTube - Video MathHelp - YouTube - Video Text Lessons:

Purple Math - Text Lesson WTAMU EDU - Text Lesson Khan Academy - Text Lesson Worksheets:

Math-Aids - Worksheet Kuta - Worksheet Khan Academy - Practice + Show More +