Let's solve the problem step by step.
We are asked to
factor each expression. Factoring means writing an expression as a product of its factors, usually by finding the
greatest common factor (GCF) of the terms and factoring it out.
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🔧 General Method:
For an expression like $ ax + b $, we look for the
greatest common factor (GCF) of the coefficients and variables, then factor it out.
Example:
$ 3x + 15 $
- GCF of 3 and 15 is
3
- Factor out 3: $ 3(x + 5) $
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Now let’s go through all 30 problems:
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#### 1. $ 3x + 15 $
GCF = 3 → $ 3(x + 5) $
#### 2. $ 8y - 72 $
GCF = 8 → $ 8(y - 9) $
#### 3. $ 9a + 18 $
GCF = 9 → $ 9(a + 2) $
#### 4. $ 3b - 27 $
GCF = 3 → $ 3(b - 9) $
#### 5. $ 5c + 40 $
GCF = 5 → $ 5(c + 8) $
#### 6. $ 9a + 18 $
Same as #3 → $ 9(a + 2) $
#### 7. $ 6c + 18 $
GCF = 6 → $ 6(c + 3) $
#### 8. $ 8c - 8 $
GCF = 8 → $ 8(c - 1) $
#### 9. $ 5x - 10 $
GCF = 5 → $ 5(x - 2) $
#### 10. $ 2b - 16 $
GCF = 2 → $ 2(b - 8) $
#### 11. $ 8b + 72 $
GCF = 8 → $ 8(b + 9) $
#### 12. $ 7c - 35 $
GCF = 7 → $ 7(c - 5) $
#### 13. $ 5x - 15 $
GCF = 5 → $ 5(x - 3) $
#### 14. $ 6a - 48 $
GCF = 6 → $ 6(a - 8) $
#### 15. $ 3a - 6 $
GCF = 3 → $ 3(a - 2) $
#### 16. $ 9c - 63 $
GCF = 9 → $ 9(c - 7) $
#### 17. $ 3z + 9 $
GCF = 3 → $ 3(z + 3) $
#### 18. $ 6b - 12 $
GCF = 6 → $ 6(b - 2) $
#### 19. $ 2y + 18 $
GCF = 2 → $ 2(y + 9) $
#### 20. $ 3b - 6 $
GCF = 3 → $ 3(b - 2) $
#### 21. $ 3x + 24 $
GCF = 3 → $ 3(x + 8) $
#### 22. $ 9x - 18 $
GCF = 9 → $ 9(x - 2) $
#### 23. $ 2c + 16 $
GCF = 2 → $ 2(c + 8) $
#### 24. $ 7b - 28 $
GCF = 7 → $ 7(b - 4) $
#### 25. $ 7x - 56 $
GCF = 7 → $ 7(x - 8) $
#### 26. $ 8z - 56 $
GCF = 8 → $ 8(z - 7) $
#### 27. $ 7z - 28 $
GCF = 7 → $ 7(z - 4) $
#### 28. $ 9b + 27 $
GCF = 9 → $ 9(b + 3) $
#### 29. $ 4b + 24 $
GCF = 4 → $ 4(b + 6) $
#### 30. $ 6c + 36 $
GCF = 6 → $ 6(c + 6) $
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✔ Final Answer List:
1. $ 3(x + 5) $
2. $ 8(y - 9) $
3. $ 9(a + 2) $
4. $ 3(b - 9) $
5. $ 5(c + 8) $
6. $ 9(a + 2) $
7. $ 6(c + 3) $
8. $ 8(c - 1) $
9. $ 5(x - 2) $
10. $ 2(b - 8) $
11. $ 8(b + 9) $
12. $ 7(c - 5) $
13. $ 5(x - 3) $
14. $ 6(a - 8) $
15. $ 3(a - 2) $
16. $ 9(c - 7) $
17. $ 3(z + 3) $
18. $ 6(b - 2) $
19. $ 2(y + 9) $
20. $ 3(b - 2) $
21. $ 3(x + 8) $
22. $ 9(x - 2) $
23. $ 2(c + 8) $
24. $ 7(b - 4) $
25. $ 7(x - 8) $
26. $ 8(z - 7) $
27. $ 7(z - 4) $
28. $ 9(b + 3) $
29. $ 4(b + 6) $
30. $ 6(c + 6) $
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📌 Summary:
All expressions were factored by identifying the
greatest common factor (GCF) of the terms and factoring it out. This is the basic method for factoring
binomials with two terms.
Let me know if you'd like these explained one-by-one or want a printable version!
Parent Tip: Review the logic above to help your child master the concept of factoring quadratic equations worksheet.