Download presentation

Presentation is loading. Please wait.

Published byMarilynn Golden Modified over 2 years ago

1
**Factoring Trinomials Using the Tic-Tac-Toe Method**

Created by Kathy Turner

2
**X 72x -X -72x 2X 36x -2X -36x 3X 24x -3X -24x 4X 18x -4X -18x 6X 12x**

Step 1: Multiply first term 6x2 by the last term 12. 6x2+17x+12 -X -72x ± x ± 72x 2X 36x ± 2x ± 36x -2X -36x 3X 24x ± 3x ±24x Step 2: List all factors in the table to the right. -3X -24x ± 4x ±18x 4X 18x ± 6x ±12x -4X -18x ±8x ±9x 6X 12x Step 3: Pick the terms that will equal the middle term in problem. -6X -12x 8X 9x -8X -9x

3
Take these 2 GCFs on top and put them in the first parenthesis to double check your answer. Do the same thing for the other two GCFs. 6x2+17x+12 Draw a tic-tac-toe board and place your first and last terms in the board as shown: GCF 2x GCF 3 This block stays blank First Term 6x2 Pick two table terms that equal the middle term x and place them on the tic-tac-toe table: Table Term 9x GCF 3x Table Term 8x Last Term 12 GCF 4 Next, find the greatest common factors and place them in the remaining tic-tac-toe squares. Last, double check your board: (2x+3)(3x+4) = 6x2+17x+12 6x2+9x+8x+12 6x2+17x+12

4
**-2x 15x 2x -15x -3x 10x -30x2 -x 30x x -30x 3x -10x -5x 6x 5x -6x**

Step 1: Multiply first term 2x2 by the last term -15. 2x2 + x - 15 -x x x x -2x x Step 2: List all factors in the table to the right. 2x x -3x x 3x x Step 3: Pick the terms that will equal the middle term in problem. -5x times 6x = -30x2 -5x x 5x x

5
2x2+x-15 You must keep the negative on the –5x because it is on the edge. Draw a tic-tac-toe board and place your first and last terms in the board as shown: GCF 2x GCF -5 This block stays blank First Term 2x2 Pick two table terms that equal the middle term x and place them on the tic-tac-toe table: Table Term -5x GCF x Table Term 6x Last Term -15 GCF 3 Next, find the greatest common factors and place them in the remaining tic-tac-toe squares. Last, double check your board: (2x-5)(x+3) = 2x2+x-15 2x2-5x+6x-15 2x2+x-15

Similar presentations

OK

Factoring Part 3. FACTORING #1: Take out the GCFEX: 2x 4 – 8x 3 + 4x 2 – 6x How to do it…. Find what is in common in each term and put in front. See what.

Factoring Part 3. FACTORING #1: Take out the GCFEX: 2x 4 – 8x 3 + 4x 2 – 6x How to do it…. Find what is in common in each term and put in front. See what.

© 2017 SlidePlayer.com Inc.

All rights reserved.

Ads by Google

Ppt on db2 introduction to physics Ppt on self awareness quiz Ppt on layer 3 switching Ppt on operation research introduction Interactive ppt on the writing process Ppt on open access Ppt on project life cycle Ppt on earth movements and major landforms in mexico Ppt on beer lambert law units Ppt on buddhism and jainism