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Across
  1. 2. Equation formed from 2x-8=0
  2. 6. Value of f(1) for x^2-2x+1
  3. 7. Polynomial used to count number of terms
  4. 10. Value of -b/2a for y=x^2-4x+1
  5. 12. Term with x^3 in -3x^3+5x-1
  6. 13. Remainder using f(1) for x^2-4x+3
  7. 14. Arithmetic mean of 8 and 14
  8. 18. Linear form of 3x^n+1
  9. 19. General quadratic equation
  10. 20. Harmonic mean of 6 and 3
  11. 23. Recursive formula with ratio 3
  12. 25. Value of -b/2a for y=x^2+2x-3
  13. 26. Fourth term of the GP 3,6,12
  14. 27. Value of f(0) for 2x^2-x+4
  15. 29. Arithmetic mean of 10 and 20
  16. 31. Factored form of x^3-4x^2-x+4
  17. 34. Fifth term of the AP 2,5,8
  18. 35. Tenth term of the AP 1,4,7
  19. 36. Polynomial with highest power x^4
  20. 38. Value of f(-1) for x^2+2x+1
  21. 39. Value of f(0) for x^2-6x+9
Down
  1. 1. Quadratic general form
  2. 3. Arithmetic mean of 4 and 10
  3. 4. Highest power term in 4x^3-2x+7
  4. 5. Value of f(2) for x^2-3x+1
  5. 8. Positive solution of x^2=9
  6. 9. Difference using a2-a1 for 7,12,17
  7. 11. Factored form of x^2-7x+10
  8. 15. Value of f(1) for x^3-1
  9. 16. Sixth term of the GP 2,4,8
  10. 17. Factored form of x^2-5x+6
  11. 20. Harmonic mean of 4 and 12
  12. 21. Common ratio of 2,6,18
  13. 22. Common ratio of 5,15,45
  14. 24. Evaluation of f(0) for 3x^3+2x-8
  15. 28. Geometric mean of 4 and 16
  16. 30. Term with x^2 in 5x^2-7x+9
  17. 32. Equation with no real solution
  18. 33. Axis of symmetry formula
  19. 37. Value of f(1) for x^3-2x+1