ALGEBRA I - SECTION 8-8 (Factoring by Grouping)

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Presentation transcript:

ALGEBRA I - SECTION 8-8 (Factoring by Grouping) 4/17/2019 ALGEBRA I @ SECTION 8-8 : FACTORING by GROUPING

Factor by Grouping - Example 1 Grouping the terms together that can have something “factored out” x2 + 2x + xy + 2y so we will group these together x2 + 2x + xy + 2y what can we factor out? x y Now what do we have left if we factor those out?

Now what can be “factored out” EXAMPLE 1 (cont.) x2 + 2x + xy + 2y x (x + 2) + y (x + 2) Now what can be “factored out” Same “factor” in both parts so… “factor it out”

 More Examples  2) 15x2 – 6ax – 20cx + 8ac 3) ax + x + 3a + 3 4) x3 – 5x2 + 9x - 45 5) 6x2 + 3x – 2cx - c

Wooo Hooo Homework time!