Factoring by Grouping.  1. If possible, factor out a GCF of all FOUR terms.  2. If necessary, rearrange so that the first 2 terms have a common factor.

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Presentation transcript:

Factoring by Grouping

 1. If possible, factor out a GCF of all FOUR terms.  2. If necessary, rearrange so that the first 2 terms have a common factor and the second 2 terms have a common factor.  3. Factor a GCF out of each pair of terms.  4. Rewrite a the product of two binomials.

 1. x 2 + 7x + 3x + 21  2. x 2 - x + 3x – 3  3. 4x x + 10x – 25  4. 3x xy + 4xy – 24y 2  5. 7y – 16 + xy + 7x  6. 3x 2 - 3x - 3x + 3  7. 9x 3 + 6x x 2 – 30x

 8. 5m + 2w + mw + 10  9. ax – 10 – 5x + 2a  10. ax – 21 – 3a + 7x

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