1. 1) Which pair of factors of 8 has a sum of 9?
Bellwork: 1/25/18
1) Which pair of factors of 8 has a sum of 9?
2) Which pair of factors of 30 has a sum of –17?
Multiply
3) (x +2)(x +3)
4) (r + 5)(r – 9)

2. Factoring
We will...
Factor quadratic trinomials of the form 
ax2 + bx + c.

4. Factor 3x2 – 2x – 8 Factor: Factor 6x2 + 11x + 4 Factor x2 + 15x + 36

5. Factor: w2+w-12 3x3-21x2+30x 2w2+10w-48 y2-8y+15 6x2 + 17x + 5

6. Bellwork: 1/26/18 Factor out the GCF: 1) 12y3-6y2-9y 2) -15ab+25a
3) 2x3+3x2+8x+12
4) 3n2 + 11n – 4

8. x2+6x+8 t2-8t-20 x2-100 6x2 + 7x – 3 -4y2+4y+24 2x2 + 9x – 18
4n2 – n – 3

9. (x + 3)(x +4) = x2 + 7x + 12

10. x2 – 8x – 20 x2 + x – 20 x2 – 13x + 40 x2 – 5x + 6 x2 – 3x – 18
Factor:
x2 + 13x + 42
x2 – 5x + 6
x2 – 8x + 15
x2 + 8x + 12
x2 + x – 20
x2 – 3x – 18
x2 – 8x – 20
x2 – 13x + 40

11. Factor
x2 + x – 20
x2 – 8x – 20
x2 – 3x – 18
x2 + 2x – 15

12. Factor y2 + 10y Show that the original polynomial 
and the factored form have the same value for n = 0, 1, 2, 
3, and 4.
Factor n2 – 7n Show that the original polynomial 
and the factored form have the same value for n = 0, 1, 2, 
3, and 4.

13. Bellwork: 2/10/15
Factor out the GCF:
1) 16x3+8x2+4x 2) 27xy-9x2y2
3) -12p2+5p 4) -6b2+12b-15

14. Bellwork: 1/30/18 Factor out the GCF: 1) 45x2y2-10xy 2) 8a3-16a2-4a
3) m3+3m2-5m ) x2-4x-12
5) How many factors are there in the expression (2x+7)(y-12)z?

15. Factoring Continued
We will....
Factor special polynomials
Practice all factoring using grouping method
Take Quiz

16. Factor: x2+6x+9 y2+10y+25 a2+18a+81 x2+16x+64 y2-49 4x2-25 m2-144

17. 2x2 - 12x -14
6x2 + 11x + 3