Factor by Grouping.notebook
October 18, 2016
Warm Up
2
1. Find the GCF of 25x and 15x .
2. Find the GCF of 18, 45, and 90.
2
3. Factor out the GCF: 6x - 36x
Warm up 1
Factor by Grouping.notebook
October 18, 2016
Factor By Grouping (4 terms)
1) 8x2 ­14x + 24x ­ 42
2) 3x2 + 15x + 1x + 5 factor by grouping
3) x2 - 2x - 9x + 18
4) 3x2 + 15x - 2x - 10
Grouping behind negative sign
2
Factor by Grouping.notebook
October 18, 2016
TRY:
5) 20x2 + 5x + 8x + 2
6) 3x2 + 5x ­ 12x ­ 20
grouping all addition
Homework
Factor out the GCF.
1. 3x + 6
2. 10x ­ x2
3. 6x ­ 2x2
4. 3x2 + 18
Factor by grouping.
5. x2 + 4x + 4x + 16
6. x2 + 4x ­ 8x ­ 32
7. x2 ­ 12x + 2x ­ 24
8. x2 ­ 24x ­ 2x + 48
9. x2 + 10x ­ 3x ­ 30
10. x2 ­ 14x + 4x ­ 56
HW: GCF & Grouping
3