4.3.1 factoring
TRANSCRIPT
4.3 FactoringFactor trinomial expressions into two binomial expressions
Warm-up - Multiply
4 3x x
5 7x x
6 9x x
2 12 35x x
2 12x x
2 15 54x x
Un-Multiply (aka “factor”)
2 5 6x x
xx 32
Un-Multiply (aka “factor”)
2 5 6x x
xx 32
2 3
2 3 or
2 3x x
2 3x x or
Factor2 7 6x x
xx 61
1 6
1 6 or
1 6x x
1 6x x or
Factor2 6x x
xx 32
2 3
2 3 or
2 3x x
2 3x x or
Factor – now you try…2 5 6x x
6 1x x
2 4 12x x
6 2x x
Special factoring patternsDifference of Squares
Perfect Square Trinomial
2 2a b a b a b
22 22a ab b a b
22 22a ab b a b or
Factor2 100x
10 10x x conjugates2 20 100x x
210x
Factor – now you try…2 36x
6 6x x
2 2 1x x
21x
Factor – How about this one?
2 9 12x x
cannot be factored
2 30x x
5 6x x
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