12/12
Expand
1. (x+4)(x+7)
3. Factor 15x5 + 20 x3
Take out your hw
2. Expand 3x3y(2x4+5xy3)
4. What is the slope of the linear function 2x + 3y = 15
TEST ANSWERS p 1 of 2
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TEST ANSWERS p 2 of 2
How to improve your grade.
1. Requiz either of the two quizzes highlighted on the grades outside.
2. All incompletes become "0's" on Friday.
3. Your notebook check is a project grade at 6% of your grade. 4. On Friday I will give up to 2 ec hw grades for a COMPLETED review sheet.
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HW 38 answers
SIMPLIFY THIS
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12_13: Factoring­ UnFOIL
Factor: 1. x2 + 7x +12 2. x2 + 13x +12
3. x2 + 8x +12
4. x2 + 9x +12
Factoring A: in your composition notebook
p1
# 6 x2 + 14x+24
ex 7 . 15n3y + 27n2y3
12. x2 + 10x+24
ex 8 . x2 ­289
17. x2 + 5x+ 6
ex 9 . x2 ­28 0.
.
ex 6 . n2 + 27
19. n2 + 7n+ 6
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Factoring
1. GCF: ALWAYS DO THIS FIRST.
2. Look for x2 ­y2 = (x­y)(x+y)
3. Diff/sum of 2 cubes
4. Un FOIL
p 1 pf handout ( 1, 3, 7
1. x2 +10x +9
3. y2 ­12y + 35
7. x2 +5x ­24
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