Download presentation

Presentation is loading. Please wait.

1
**Factoring Trinomials using common factors**

2
**GCF? YES!! Remember – always check for GCF first!!**

Factor out everything that ALL terms have in common. In this case, all numbers are even so they have a 2 in common, and each term has at least 1 x. Now, use the tic-tac-toe method on the trinomial. This sign tells you to Subtract The factors. This signs shows The sign of the Larger factor Don’t forget to check yourself, multiply ACROSS (L to R) all rows and UP all columns to see if you get the correct products. Now bring down your GCF!!!

3
**GCF? YES!! Remember – always check for GCF first!!**

Factor out everything that ALL terms have in common. In this case, all numbers have a 3 in common, and each term has at least 1 x. Now, use the tic-tac-toe method on the trinomial. This signs shows The sign of the Larger factor This sign tells you to Subtract The factors. Don’t forget to check yourself, multiply ACROSS (L to R) all rows and UP all columns to see if you get the correct products. Now bring down your GCF!!!

4
**GCF? YES!! Same steps as before!!**

Factor out EVERYTHING that ALL terms have in common. The numbers have 3 in common. What is the smallest exponent for “x”? So, each term has 2x’s in common. What is the smallest exponent on the “y”? So each term has 1 y in common. Now divide out the number and subtract the variables exponents. Now, use the tic-tac-toe method on the trinomial. (1)(20) (2)(10) (4)(5) Which one will subtract to give +8? (1)(4) or (2)(2) Which one? Multiply across the row for help! Now bring down your GCF!!!

5
**GCF? YES!! Same steps as before!!**

Factor out EVERYTHING that ALL terms have in common. Now divide out the number and subtract the variables exponents (1)(6) or (2)(3) ??? Now, use the tic-tac-toe method on the trinomial. Now bring down your GCF!!!

6
**GCF? YES!! What is different about this problem?**

When the leading term is negative, just factor out a negative number to make it positive!!!. Factor out EVERYTHING that ALL terms have in common. (1)(90) (2)(45) (3)(30) (5)(18) (6)(15) yes Now divide out the negative number!! Now, use the tic-tac-toe method on the trinomial. Now bring down your GCF!!!

7
GCF? YES!! When the leading term is negative, just factor out a negative number to make it positive!!!. Factor out EVERYTHING that ALL terms have in common. (1)(120) (2)(60) (3)(40) (4)(30) (5)(24) (6)(20) (8)(15) Yes (1)(20) (2)(10) (4)(5) yes – Look at last column. Now divide out the negative number!! Now, use the tic-tac-toe method on the trinomial. Now bring down your GCF!!!

Similar presentations

OK

Factor Trinomials 8-4 page 107, example 1 2x 2 – 15x+ 18 When the last term is positive, what are the signs? Both positive? Both negative? Mixed? (+)(+)

Factor Trinomials 8-4 page 107, example 1 2x 2 – 15x+ 18 When the last term is positive, what are the signs? Both positive? Both negative? Mixed? (+)(+)

© 2017 SlidePlayer.com Inc.

All rights reserved.

Ads by Google

Ppt on teachers day wishes Download ppt on palm island dubai Ppt on different solid figures first grade Ppt on power factor improvement methods Ppt on real numbers for class 9th model Ppt on l&t finance limited Stereoscopic image display ppt online Ppt on eia report today Ppt on ozone depletion and global warming A ppt on loch ness monster video