4.3.1 factoring

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4.3.1 factoring

  1. 1. 4.3 Factoring Factor trinomial expressions into two binomial expressions
  2. 2. Warm-up - Multiply   4 3x x    5 7x x    6 9x x  2 12 35x x  2 12x x  2 15 54x x 
  3. 3. Un-Multiply (aka “factor”) 2 5 6x x    xx 32
  4. 4. Un-Multiply (aka “factor”) 2 5 6x x    xx 32  2 3    2 3   2 3x x    2 3x x  
  5. 5. Factor 2 7 6x x    xx 61  1 6    1 6   1 6x x    1 6x x  
  6. 6. Factor 2 6x x    xx 32     2 3     2 3  2 3x x     2 3x x 
  7. 7. Factor – now you try… 2 5 6x x    6 1x x  2 4 12x x    6 2x x 
  8. 8. Special factoring patterns  Difference of Squares  Perfect Square Trinomial   2 2 a b a b a b      22 2 2a ab b a b      22 2 2a ab b a b   
  9. 9. Factor 2 100x    10 10x x  2 20 100x x    2 10x 
  10. 10. Factor – now you try… 2 36x    6 6x x  2 2 1x x    2 1x 
  11. 11. Factor – How about this one? 2 9 12x x  cannot be factored 2 30x x    5 6x x 
  12. 12. Assignment p. 255 # 1 - 23

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