Factoring

To use the box thingy to factor....

2x^2 + 7x +3

Put the 7 in the top left box. Multiply the 2 and 3 to get 6 and put 6 in the top right box.
Find numbers you multiply to get 6 that add up to 7 (6 and 1) and put them in the lower boxes. It doesn't matter which one goes where. Then rewrite the equation replacing the 7x with 6x and 1x....
2x^2 + 6x + x +3
Group and then factor
2x(x + 3) +1(x + 3)
(x + 3)(2x + 1)

Does that help?

Algebra I Answers #1-100

1. d
2. d
3. c
4. d
5. a
6. a
7. c
8. b
9. b
10. a
11. d
12. a
13. b
14. c
15. a
16. c
17. d
18. c
19. d
20. c
21. b
22. c
23. d
24. c
25. d
26. a
27. d
28. a
29. c
30. d
31. a
32. d
33. a
34. b
35. b
36. a
37. a
38. b
39. b
40. d
41. c
42. b
43. d
44. b
45. d
46. a
47. b
48. b
49. d
50. a
51. d
52. b
53. b
54. d
55. a
56. b
57. b
58. c
59. c
60. b
61. b
62. d
63. c
64. d
65. c
66. a
67. b
68. c
69. c
70. c
71. c
72. c
73. b
74. a
75. d
76. b
77. b
78. c
79. c
80. d
81. d
82. b
83. b
84. c
85. d
86. b
87. a
88. b
89. a
90. b
91. c
92. c
93. a
94. a
95. b
96. d
97. c
98. c
99. c
100. b

#50

Use the "sum" from the sum & product rule.
One solution is 3+2i and the other is its conjugate, 3-2i.
(3+2i) + (3-2i) = -b/a
6/1 = -b/a
b = -6

EOC Packet Answers #1-99

1. a 27. c 52. d 77. d
2. b 28. c 53. b 78. d
3. b 29. a 54. d 79. d
4. d 30. c 55. c 80. c
5. d 31. a 56. b 81. c
6. b 32. a 57. b 82. b
7. a 33. a 58. b 83. c
8. c 34. d 59. a 84. a
9. c 35. b 60. d 85. a
10. d 36. b 61. b 86. c
11. a 37. d 62. c 87. d
12. d 38. d 63. d 88. b
13. c 39. a 64. a 89. a
15. c 40. c 65. c 90. a
16. b 41. b 66. d 91. c
17. a 42. c 67. c 92. b
18. c 43. b 68. d 93. a
19. d 44. a 69. a 94. a
20. c 45. b 70. c 95. c
21. c 46. b 71. d 96. b
22. d 47. a 72. b 97. d
23. c 48. a 73. b 98. a
24. b 49. c 74. c 99. c
25. c 50. b 75. d
26. c 51. d 76. b

Algebra I Chapter 7 Review

Thursday, April 3rd - H. Algebra II

Wednesday, April 2nd - H. Algebra II

Assignment:
Do the assignments written at the end of each page of notes for 8.1, 8.2, and 8.3. If you finished this during class you were to start the word problems, but don't finish them tonight. We will finish that worksheet in class tomorrow and review for the test on Friday.