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Answers to Internet Assignments #18, #20, # 22, #23, #24

Assignment #18

1. (3x + 4)(x + 3)

2. (8x + 1)(x - 2)

3. (5x + 3)(2x - 5)

4. (x - y)(x - 4y)

5. (x - 1)(x + 6)

6. (2x + 1)((3x + 5)

7. (2x + y)(4x - 3y)

8. (5x - 6)(x - 2)

9. (6x - 1)(6x - 1)

10. (4x + 3)(x - 2) Assignment #20

1. 10x(2x - 1)

2. (6x - 7y)(6x + 7y)

3. (x - 2)(x - 11)

4. (x - 2)(x + 4)

5. (x - 3y)(x + 3y)

6. (x - 10)(x + 1)

7. 4xy(xy - 1)

8. (x + 7)(x - 3)

9. (x + 5y)(x - 4y)

10. (x + 2)(x + 2)

11.

12. (2x - 5)(3x - 2)

13.

14. (3x - 1)(x + 2)

15. 6(x - 4)

16. (x - 3)(x + 3) Assignment #22

1. (x + 6)/(x + 5)

2. 4/(x - 2)

3. (4x - 5)/(x + 8)

4. 2a/(2a - 1)

5. (3x - 4y)(3x + 4y)

Assignment 22A

1. 1/x

2. (3x³)/y³

3. (4b)/a²

4. 25/(9x⁶)

5. (5s²⁾/(3r⁵)

6. (x⁵⁾/5y³ Assignment #23

1. (x + 4)/2x

2. (x - 2)/3x

3. 8(x + 2)/(x + 4)

4. (2x + 1)/(x + 1).

5. 1/x Assignment #24

1.(x-5)/(x - 2)

2. (2x + 5)/(3x - 2)

3. 1/(3x - 5y)

4. 5/12b²

5. 1/xy

6. (x + 5)/x

7. (x + 5)(x - 4)

8. 5(3x + 4)/(5x-7)

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by Ellen Freedman, All Rights Reserved.

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