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Algebra I Practice 12.4-­‐12.6 Simplify. State the excluded values. y+4
27x 3
1. 2. 2
5
y !16
30x
m 2 ! 4m ! 45
4. 2m 2 ! 21m + 27
Multiply or Divide. Simplify your answer. 2w 2
• (w ! 4) 6. 2
w ! 7w +12
m2 ! 4
6m ! 3m 2
÷
8. 2m 2 + 4m 4m + 44
Name_____________________________ 14x 2 + 21x
3. 2
2x + x ! 3
5. x2 + x ! 2
2x 2 + 2x
•
7. 2
x + 2x 5x 2 !15x +10
9. 5x !10
2!x
2x 2 +16x + 24
÷ (x + 6) 3x 2
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