MATH 105 Sample Mastery Exam Solutions

  1. (2x - 3y)(2x + 3y)
  2. 9x2 + 12x + 4
  3. 8x3/y6
  4. (2x - 3)/(x - 1)
  5. (2,-3)
  6. x = -8/9
  7. -9 < x < 11
  8. (2b + 1)
  9. y = -2x + 1
  10. y - 4 = 2(x - 1)
  11. -4, -2, 2
  12. x = 3
  13. (-1,0) and (7,0)
  14. All real numbers except 3
  15. 2/(3t - 5)
  16. f -1(x) = (x - 1)1/3
  17. -1
  18. I and III
  19. x = 2
  20. 28,771
  21. x = -1 and x = 3
  22. 4
  23. log (x5z3/y6)
  24. 30,000e1.8 ln 4 (approximately 360,000)
  25. 8 silver dollars and 7 quarters