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1. Jack usually mows his...

1. Jack usually mows his lawn in 5 hours. Marilyn can mow the same lawn in 7 hours. How much time would it take for them to mow the lawn together.

2. Divide and simplify 11w-22/9 divided by w-2/21w

3. Simplify 3sqrt 8x^8/y^3

4. Covert to decimal notation 8.93*10^7

5. 16sqrt(-5)^16

6. find the greatest common factor -66a^4, 11a^5

7. Factor completely 49w^2+16-56w

8. (-6w^2+6w+2)-(8w^2+2)

9. Factor 44-15c+c^2

10. Evaluate the polynomial for x=7...2x^2-5x+1

11. Factor b^2*6b+9

12. Multiply (w+1/5)(w+1/2)

13. sqrt(5x+21)=x+3

14. 6x^4-11x^2+3=0

15. (w+g)(w^2-wg+g^2)

16. sqrt45a^2b

17. State the value of the discrimate and describe the nature of solutions -2x^2+10x-20=0

18. factor completely 112b^2+392bf+343f^2

19. multiply (9x+7)(8x^2+4x+6)

20. multiply (-4m)^2(3m^8)^2

21. simplify by removing factors of 1... n^2-81/(n+9)^2

22. solve x^2+2x-4=0

23. add and simplify 6r/r^2-1+r/r-1

24. 4x(x-2)-5x(x-1)=2

25. write as radical expression x^1/8*y^1/5*z^1/4

26. (x+4)(x-13)(x+1)>0

27. 9w^2-121

2. Divide and simplify 11w-22/9 divided by w-2/21w

3. Simplify 3sqrt 8x^8/y^3

4. Covert to decimal notation 8.93*10^7

5. 16sqrt(-5)^16

6. find the greatest common factor -66a^4, 11a^5

7. Factor completely 49w^2+16-56w

8. (-6w^2+6w+2)-(8w^2+2)

9. Factor 44-15c+c^2

10. Evaluate the polynomial for x=7...2x^2-5x+1

11. Factor b^2*6b+9

12. Multiply (w+1/5)(w+1/2)

13. sqrt(5x+21)=x+3

14. 6x^4-11x^2+3=0

15. (w+g)(w^2-wg+g^2)

16. sqrt45a^2b

17. State the value of the discrimate and describe the nature of solutions -2x^2+10x-20=0

18. factor completely 112b^2+392bf+343f^2

19. multiply (9x+7)(8x^2+4x+6)

20. multiply (-4m)^2(3m^8)^2

21. simplify by removing factors of 1... n^2-81/(n+9)^2

22. solve x^2+2x-4=0

23. add and simplify 6r/r^2-1+r/r-1

24. 4x(x-2)-5x(x-1)=2

25. write as radical expression x^1/8*y^1/5*z^1/4

26. (x+4)(x-13)(x+1)>0

27. 9w^2-121

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