1 / 5

6-4 Factoring x 2 + bx + c

6-4 Factoring x 2 + bx + c. Steve Blaylock Lakota Schools 2009-2010. A Quick Review – Try these ASAP. Multiply each of the following… 1. (x + 4) (x + 3) 2. (m - 7) (m - 2) 3. (y + 11) (y - 4) 4. (a – 14)(a + 5). Patterns We Recognize.

Download Presentation

6-4 Factoring x 2 + bx + 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. 6-4 Factoringx2 + bx + c Steve Blaylock Lakota Schools 2009-2010

  2. A Quick Review – Try these ASAP • Multiply each of the following… • 1. (x + 4) (x + 3) • 2. (m - 7) (m - 2) • 3. (y + 11) (y - 4) • 4. (a – 14)(a + 5)

  3. Patterns We Recognize If the polynomial fits the pattern, x2 + bx + c and is factorable: It will factor to (x + __)(x + __) If the polynomial fits the pattern, x2 - bx + c and is factorable: It will factor to (x - __)(x - __) If the polynomial fits the pattern, x2 + bx - c and is factorable: It will factor to (x + __)(x - __) In general, if the sign in front of the “c” term is positive, the sign in front of the “bx” term indicates which sign you will use. If the sign in front of the “c” term is negative, the sign in front of the “bx” term helps identify where the plus and minus go.

  4. A few examples… Factor each of the following. A. x2 + 5x + 6B. x2 + 7x + 12 C. x2 – 8x + 15D. a2 + 8ab + 15b2 E. x2 – 8x - 20 F. m2 + 5mn – 14b2

  5. A few examples more… Factor each of the following. A. x2 - 4x - 12B. x2 + 5xy + 6y2 C. x2 + 9x + 14D. z2- 10z + 24 E. x2 – 25x + 144 F. 120m2- 23mn + n2

More Related