1. Bellwork 3/ (Solve)
1.) x2 + 6x - 7 = 0
2.) x2 + x - 12 = 0
3.) x2 + 6x + 5 = 0
4.) 2x2 + 7x + 6 = 0

2. 1.) x2 + 6x - 7 = 0 (x -1)(x + 7) = 0 x - 1 = 0 & x + 7 = 0
Bellwork 3/ (Solve)
1.) x2 + 6x - 7 = 0
(x -1)(x + 7) = 0
x - 1 = & x + 7 = 0
x = & x = -7

3. 2.) x2 + x - 12 = 0 (x - 3)(x + 4) = 0 x - 3 = 0 & x + 4 = 0
Bellwork 3/ (Solve)
2.) x2 + x - 12 = 0
(x - 3)(x + 4) = 0
x - 3 = 0 & x + 4 = 0
x = & x = -4

4. 3.) x2 + 6x + 5 = 0 (x + 1)(x + 5) = 0 x + 1 = 0 & x + 5 = 0
Bellwork 3/ (Solve)
3.) x2 + 6x + 5 = 0
(x + 1)(x + 5) = 0
x + 1 = 0 & x + 5 = 0
x = & x = -5

5. Bellwork 3/ (Solve)
4.) 2x2 + 7x + 6 = 0
Since you can’t factor out the 2 of the 2x2, you are stuck with it and you must try different factors.

6. These are all the different factors.
Bellwork 3/ (Solve)
4.) 2x2 + 7x + 6 = 0
These are all the different factors.
Which one works?
Try (2x +2)(x + 3)
Try (2x +1)(x + 6)
Try (2x +6)(x + 1)
Try (2x +3)(x + 2)

7. 4.) 2x2 + 7x + 6 = 0 Try (2x +2)(x + 3) x2 + 6x + 2x + 6 x2 + 8x + 6
Bellwork 3/ (Solve)
4.) 2x2 + 7x + 6 = 0
Try (2x +2)(x + 3)
x2 + 6x + 2x + 6
x2 + 8x + 6
Doesn’t work

8. 4.) 2x2 + 7x + 6 = 0 Try (2x +1)(x + 6) x2 + 12x + 1x + 6 x2 + 13x + 6
Bellwork 3/ (Solve)
4.) 2x2 + 7x + 6 = 0
Try (2x +1)(x + 6)
x2 + 12x + 1x + 6
x2 + 13x + 6
Doesn’t work

9. 4.) 2x2 + 7x + 6 = 0 Try (2x +6)(x + 1) x2 + 2x + 6x + 6 x2 + 8x + 6
Bellwork 3/ (Solve)
4.) 2x2 + 7x + 6 = 0
Try (2x +6)(x + 1)
x2 + 2x + 6x + 6
x2 + 8x + 6
Doesn’t work

10. 4.) 2x2 + 7x + 6 = 0 Try (2x +3)(x + 2) x2 + 4x + 3x + 6 x2 + 7x + 6
Bellwork 3/ (Solve)
4.) 2x2 + 7x + 6 = 0
Try (2x +3)(x + 2)
x2 + 4x + 3x + 6
x2 + 7x + 6
Ya ba da ba doo

11. Quiz 3/30
Do 1- 6 of the Quiz.

12. Try These (Solve)
1.) 3x2 + 11x - 4 = 0
2.) 2x2 +5x + 3 = 0
Your Turn

13. What are all the factors that you can use for -4? 1• -4, -1• 4, 2• -2
Try These (Solve)
1.) 3x2 + 11x - 4 = 0
What are all the factors that you can use for -4?
1• -4, -1• 4, 2• -2

14. 1.) 3x2 + 11x - 4 = 0 ( )( ) = 0 step 1 (3x )(x ) = 0 step 2
Try These (Solve)
1.) 3x2 + 11x - 4 = 0
( )( ) = 0 step 1
(3x )(x ) = 0 step 2
(3x - 1)(x + 4) = 0 factor

15. 1.) 3x2 + 11x - 4 = 0 (3x - 1)(x + 4) = 0 3x - 1 = 0 & x + 4 = 0
Try These (Solve)
1.) 3x2 + 11x - 4 = 0
(3x - 1)(x + 4) = 0
3x - 1 = 0 & x + 4 = 0
3x = 1 & x = -4
x = 1/3

16. 2.) 2x2 +5x + 3 = 0 (2x )(x ) = 0 (2x + 3)(x + 1) = 0 The Check:
Try These (Solve)
2.) 2x2 +5x + 3 = 0
(2x )(x ) = 0
(2x + 3)(x + 1) = 0
The Check:
2x2 +2x + 3x + 3 = 0

17. 2.) 2x2 +5x + 3 = 0 (2x + 3)(x + 1) = 0 2x + 3 = 0 & x + 1 = 0
Try These (Solve)
2.) 2x2 +5x + 3 = 0
(2x + 3)(x + 1) = 0
2x + 3 = 0 & x + 1 = 0
2x = & x = -1
x = -3/2

18. Special Problems (Solve)
1.) x2 - 4 = 0
2.) 4x2 - 9 = 0
3.) x = 0
4.) 9x = 0
The difference of 2 perfect squares

19. Special Problems (Solve)
1.) x2 - 4 = 0
(x - 2)(x + 2) = 0
x - 2 = 0 & x + 2 = 0
x = & x = -2

20. Special Problems (Solve)
2.) 4x2 - 9 = 0
(2x - 3)(2x + 3) = 0
2x - 3 = 0 & 2x + 3 = 0
2x = & 2x = -3
x = 3/2 & x = -3/2

21. Special Problems (Solve)
3.) x = 0
4.) 9x = 0
Your Turn

22. Special Problems (Solve)
3.) x = 0
(x - 5)(x + 5) = 0
x - 5 = 0 & x + 5 = 0
x = & x = -5

23. Special Problems (Solve)
4.) 9x = 0
(3x - 10)(3x + 10) = 0
3x - 10 = 0 & 3x + 10 = 0
3x = & 3x = -10
x = 10/3 & x = -10/3

24. Classwork 3/30
Do 5 & 6 of the Quiz.
Homework:
Chapter 10 Review