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Warm-up

Warm-up. Find the product . (x + 4)(x + 7) (x + 14)(x + 2). = x 2 + 11x + 28. = x 2 + 16x + 28 . Factor. 3. 10x + 25 4. 28x 2 + 35x 5. x 3 + 2x 2 + 4x + 8. = 5(2x + 5) . = 7x(4x + 5) . = (x 2 + 4) (x + 2). EOCT Practice. Question of the Day. Homework Answers.

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Warm-up

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  1. Warm-up Find the product. • (x + 4)(x + 7) • (x + 14)(x + 2) = x2 + 11x + 28 = x2 + 16x + 28 Factor. 3. 10x + 25 4. 28x2 + 35x 5. x3 + 2x2 + 4x + 8 = 5(2x + 5) = 7x(4x + 5) = (x2 + 4) (x + 2)

  2. EOCT Practice Question of the Day

  3. Homework Answers

  4. GCF Factoring

  5. CCGPS GeometryDay 45 (10-15-13) UNIT QUESTION: How are real life scenarios represented by quadratic functions? Today’s Question: For polynomials, how is factoring related to multiplying? Standard: MCC9-12.A.SSE.3a

  6. Sign Rule: • When the last term is POSITIVE… • The signs inside the parenthesis will be the SAME as the middle number’s sign

  7. Figuring out the Numbers • Check to see… What multiplies to give you the last number AND adds to give you the middle number?

  8. x2 +7x + 6 x2+7x + 6 ( )( ) x x + 6 + 1 For polynomials, how is factoring related to multiplying?

  9. x2 + 9x + 14 x2+ 9x + 14 ( )( ) x x + 7 + 2 For polynomials, how is factoring related to multiplying?

  10. x2 – 6x + 8 x2– 6x + 8 ( )( ) x x –4 – 2 For polynomials, how is factoring related to multiplying?

  11. x2 – 10x + 16 x2– 10x + 16 ( )( ) x x – 8 – 2 For polynomials, how is factoring related to multiplying?

  12. Sometimes you can factor out a GCF 1st!

  13. 2x2 – 16x + 24 2(x2 – 8x +12) 2( )( ) x x – 6 – 2 For polynomials, how is factoring related to multiplying?

  14. You Try... 3y2 + 36y + 60 3(y +10)(y +2) 4x2 +24x + 32 4(x + 2)(x + 4) For polynomials, how is factoring related to multiplying?

  15. Sign Rule: • When the last term is NEGATIVE… • The parenthesis will have DIFFERENT SIGNS. • The larger factor will have the SAME sign as the middle number

  16. n2 + 2n – 48 ( )( ) n n + 8 – 6 For polynomials, how is factoring related to multiplying?

  17. x2 + 8x – 20 ( )( ) x x – 2 + 10 For polynomials, how is factoring related to multiplying?

  18. x2 – 4x – 21 ( )( ) x x + 3 – 7 For polynomials, how is factoring related to multiplying?

  19. x2 – 9x – 36 ( )( ) x x + 3 – 12 For polynomials, how is factoring related to multiplying?

  20. Homework SPW 13.5

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