1 / 9

Warm-Up

Warm-Up. Factor the following expressions by pulling out things that each term has in common: 4x 3 + 8x 2 + 12xz 9x 2 y 3 + 3xy 2 + 27xy 4. X-box Factoring. Standard.

pomona
Download Presentation

Warm-Up

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. Warm-Up Factor the following expressions by pulling out things that each term has in common: • 4x3 + 8x2 + 12xz • 9x2y3 + 3xy2 + 27xy4

  2. X-box Factoring

  3. Standard Students apply basic factoring techniques to second- and simple third-degree polynomials. These techniques include finding a common factor for all terms in a polynomial, recognizing the difference of two squares, and recognizing perfect squares of binomials. Objective: We will use the x-box method to factor trinomials.

  4. Factor the x-box way We are going to factor trinomials like 3x2 + 27x + 60 using the X-Box method. Step 1: Write the polynomial in standard form. Step 2: Factor all common factors in the trinomial. Step 3: Use the X method. Step 4: Write your answer. Step 5: Check your answer by distributing

  5. Factor the x-box way y = ax2 + bx + c Product ac=mn First and Last Coefficients n m Middle b=m+n Sum

  6. -12 4 Examples Factor using the x-box method. 1. x2 + 4x – 12 6 -2 Solution: x2 + 4x – 12 = (x + 6)(x - 2)

  7. Examples continued 2. x2 - 9x + 20 -4-5 20 -9 Solution: x2 - 9x + 20 =(x - 4)(x - 5)

  8. You try… Factor: x2 – 6x + 5 Answer: (x – 1)(x – 5)

  9. Extra Practice Factor 1. x2 + 6x + 5 (x + 5)(x + 1) 2. r2 – 12r + 35 (r – 5)(r – 7)

More Related