1. Do Now:
Take out your homework and your green sheet for Ms. Taylor to stamp
Factor the following:
3x2 + 12x4 – 5x + 15
9w2x – 13rw + 19gw

2. Homework 

3. Dice Game

4. Dice Game What you need:
One writing utensil
One die
A sheet of paper
When the music starts one partner starts the worksheet while the other partner rolls the die, once they get to a certain number(#1) you switch

5. Standard Form: ax2 + bx + c
Factoring
Standard Form:
ax2 + bx + c

6. Factoring is the opposite of multiplying:
(x +7)(x + 3) =
x2 + 10x + 21
Factoring

7. Factoring a Trinomial…
We have to find a number that multiplies to the “c” term whose factors add to the “b” term
(x +7)(x + 3) =
x2 + 10x + 21
7 • 3 = 21
7 + 3 = 10

8. Let’s do some examples…
What do they have to add to?
What do they have to multiply to?
x2 + 5x + 6

9. Check by multiplying…Box or FOIL
(x + 2)(x + 3)

10. x2 + 7x + 6 What do they have to add to?
What do they have to multiply to?

11. x2 – 3x - 28

12. x + x2

13. d2 – 6d – 27

14. 2x2 + 6x + 4

15. x2 – 9

16. Do Now
Pick up the worksheet on the back table along with the “one last thing” half sheet,
Take out your homework and get out your green sheet for Ms. Taylor to stamp
Complete the half sheet (put it in your do now section

17. Factoring Word Problems #1
The area of a rectangular door is given by the trinomial x2 – 14x The door’s width is (x – 9). What is the door’s length? (x – 5)

18. Factoring Word Problems #2
The area of a rectangular painting is given by the trinomial a2 – 6a – 16. The painting’s length is (a + 2). What is the perimeter of the painting? 4x - 12

19. Factoring Word Problems #3
If x + 3 is a factor of x2 – 4x – w , then what is the value of w?
x – 7 , w = 21

20. x2 – 5x – 14

21. x2 – 11x + 30

22. 5x2 + 40x + 75

23. x2 - 25

24. x2 + 13x + 36

25. x2 + 12x + 32

26. x2 + 14x + 45

27. x2 – 16x + 48

28. Homework… Factoring Trinomials: x2 + bx + c worksheet Day 1:
#2-18 evens
Day 2:
#1-17 odds