1 / 31

8.3 – Factoring Trinomials: x 2 + b x + c

8.3 – Factoring Trinomials: x 2 + b x + c. Recall: Simplify ( x + 2)( x + 3). Recall: Simplify ( x + 2)( x + 3). ( x · x ). Recall: Simplify ( x + 2)( x + 3 ). ( x · x ) + ( x · 3). Recall: Simplify ( x + 2 )( x + 3). ( x · x ) + ( x · 3) + (2 · x ).

elijah
Download Presentation

8.3 – Factoring Trinomials: x 2 + b x + c

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. 8.3 – Factoring Trinomials: x2 + bx + c

  2. Recall: Simplify (x + 2)(x + 3).

  3. Recall: Simplify (x + 2)(x + 3). (x · x)

  4. Recall: Simplify (x + 2)(x + 3). (x · x) + (x · 3)

  5. Recall: Simplify (x + 2)(x + 3). (x · x) + (x · 3) + (2 · x)

  6. Recall: Simplify (x + 2)(x + 3). (x · x) + (x · 3) + (2 · x) + (2 · 3)

  7. Recall: Simplify (x + 2)(x + 3). (x · x) + (x · 3) + (2 · x) + (2 · 3) x2 + 3x + 2x + 6

  8. Recall: Simplify (x + 2)(x + 3). (x · x) + (x · 3) + (2 · x) + (2 · 3) x2 + 3x + 2x + 6 x2 + (3 + 2)x + 6

  9. Recall: Simplify (x + 2)(x + 3). (x · x) + (x · 3) + (2 · x) + (2 · 3) x2 + 3x + 2x + 6 x2 + (3 + 2)x + 6 x2 + 5x + 6

  10. Recall: Simplify (x + 2)(x + 3). (x · x) + (x · 3) + (2 · x) + (2 · 3) x2 + 3x + 2x + 6 x2 + (3 + 2)x + 6 x2 + 5x + 6 Ex. 1 Factor x2 + 5x + 6.

  11. Recall: Simplify (x + 2)(x + 3). (x · x) + (x · 3) + (2 · x) + (2 · 3) x2 + 3x + 2x + 6 x2 + (3 + 2)x + 6 x2 + 5x + 6 Ex. 1 Factor x2 + 5x + 6. (x )(x )

  12. Recall: Simplify (x + 2)(x + 3). (x · x) + (x · 3) + (2 · x) + (2 · 3) x2 + 3x + 2x + 6 x2 + (3 + 2)x + 6 x2 + 5x + 6 Ex. 1 Factor x2 + 5x + 6. (x )(x ) ax2 + bx + c = (x + m)(x + n) such that m + n = b and mn = c

  13. Ex. 2 Factor x2 + 6x + 8.

  14. Ex. 2 Factor x2 + 6x + 8. x2 + 6x + 8 = (x )(x )

  15. Ex. 2 Factor x2 + 6x + 8. x2 + 6x + 8 = (x )(x ) = (x + 2)(x + 4)

  16. Ex. 2 Factor x2 + 6x + 8. x2 + 6x + 8 = (x )(x ) = (x + 2)(x + 4) Ex. 3 Factor x2 – 10x + 16.

  17. Ex. 2 Factor x2 + 6x + 8. x2 + 6x + 8 = (x )(x ) = (x + 2)(x + 4) Ex. 3 Factor x2 – 10x + 16. x2 – 10x + 16 = (x )(x )

  18. Ex. 2 Factor x2 + 6x + 8. x2 + 6x + 8 = (x )(x ) = (x + 2)(x + 4) Ex. 3 Factor x2 – 10x + 16. x2 – 10x + 16 = (x )(x ) = (x – 2)(x – 8)

  19. Ex. 2 Factor x2 + 6x + 8. x2 + 6x + 8 = (x )(x ) = (x + 2)(x + 4) Ex. 3 Factor x2 – 10x + 16. x2 – 10x + 16 = (x )(x ) = (x – 2)(x – 8) Ex. 4 Factor x2 + x – 12.

  20. Ex. 2 Factor x2 + 6x + 8. x2 + 6x + 8 = (x )(x ) = (x + 2)(x + 4) Ex. 3 Factor x2 – 10x + 16. x2 – 10x + 16 = (x )(x ) = (x – 2)(x – 8) Ex. 4 Factor x2 + x – 12. x2 + x – 12 = (x )(x )

  21. Ex. 2 Factor x2 + 6x + 8. x2 + 6x + 8 = (x )(x ) = (x + 2)(x + 4) Ex. 3 Factor x2 – 10x + 16. x2 – 10x + 16 = (x )(x ) = (x – 2)(x – 8) Ex. 4 Factor x2 + x – 12. x2 + x – 12 = (x )(x ) = (x + 4)(x – 3)

  22. Ex. 5 Factor x2 – 7x – 18.

  23. Ex. 5 Factor x2 – 7x – 18. x2 – 7x – 18 = (x )(x )

  24. Ex. 5 Factor x2 – 7x – 18. x2 – 7x – 18 = (x )(x ) = (x + 2)(x – 9)

  25. Ex. 5 Factor x2 – 7x – 18. x2 – 7x – 18 = (x )(x ) = (x + 2)(x – 9) Ex. 6 Solve x2 + 5x = 6.

  26. Ex. 5 Factor x2 – 7x – 18. x2 – 7x – 18 = (x )(x ) = (x + 2)(x – 9) Ex. 6 Solve x2 + 5x = 6. x2 + 5x = 6 -6 -6

  27. Ex. 5 Factor x2 – 7x – 18. x2 – 7x – 18 = (x )(x ) = (x + 2)(x – 9) Ex. 6 Solve x2 + 5x = 6. x2 + 5x = 6 -6 -6 x2 + 5x – 6 = 0

  28. Ex. 5 Factor x2 – 7x – 18. x2 – 7x – 18 = (x )(x ) = (x + 2)(x – 9) Ex. 6 Solve x2 + 5x = 6. x2 + 5x = 6 -6 -6 x2 + 5x – 6 = 0 (x )(x ) = 0

  29. Ex. 5 Factor x2 – 7x – 18. x2 – 7x – 18 = (x )(x ) = (x + 2)(x – 9) Ex. 6 Solve x2 + 5x = 6. x2 + 5x = 6 -6 -6 x2 + 5x – 6 = 0 (x )(x ) = 0 (x – 1)(x + 6) = 0

  30. Ex. 5 Factor x2 – 7x – 18. x2 – 7x – 18 = (x )(x ) = (x + 2)(x – 9) Ex. 6 Solve x2 + 5x = 6. x2 + 5x = 6 -6 -6 x2 + 5x – 6 = 0 (x )(x ) = 0 (x – 1)(x + 6) = 0 x – 1 = 0 x + 6 = 0

  31. Ex. 5 Factor x2 – 7x – 18. x2 – 7x – 18 = (x )(x ) = (x + 2)(x – 9) Ex. 6 Solve x2 + 5x = 6. x2 + 5x = 6 -6 -6 x2 + 5x – 6 = 0 (x )(x ) = 0 (x – 1)(x + 6) = 0 x – 1 = 0 x + 6 = 0 x = 1 x= -6

More Related