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Chapter 1…. In a NUTSHELL! 1.1: Real Numbers Classify each set of numbers as a type (natural numbers, whole numbers, integers, rational numbers irrational numbers, real numbers…). 1. 1, 2, 3… 2. 0, 1, 2, 3, 4… 3. -3, -2, -1, 0, 1, 2 4. 2, 5.7218743829 5. 3 , 1.64, 6. 4, 5, 6, 7, 8… 7. 8. 5 7 1.2: Polynomials Evaluate the expression. 9. 54 10. (-2)5 2 11. 3 13. 2 3 2 5 14. (3y)2(3y)3 15. 3872180 3 12. -42 3 16. 2 5 3 ` Perform the indicated operationsand simplify. 17. (-3x + 2) - (4x - 3) 18. (1.4x3 – 1.2x2 + 3.2) – (-0.8x3 – 2.1x – 1.8) 19. (3x2)(2x3) 20. 2(3m – 1) – 3(-4m + 2n) 22. x 2x [x (1 x)] 21. 2x[3x[2x – (3 – x)] + (x + 1)(2x – 3 )] 1.3: Factoring Polynomials Factor the polynomial. 23. 2m2 – 11m – 6 24. 4a2 – b 2 25. x4 - 16y2 26. 2x3 + 6x + x2 + 3 27. ax2 – (1 + ab)xy + by2 1.4: Rational Expressions Simplify the expression. 28. 28x 2 7x 3 29. 4 x 12 3x 9 30. x2 x 2 x 2 3x 2 31. x2 4 2x 2 x 6 Perform the indicated operations and simplify. 6x 3 8 2 32. 32 3x 33. k 2 2k 3 k 2 6k 8 k 2 k 6 k 2 2k 8 34. x y ax ay by bx Chapter 1…. In a NUTSHELL! 1 1 x y 35. 1 1 xy 1.5: Integral Exponents Simplify the expression, writing your answer using positive exponents only. 36. (2x-2y2)3 a 2b 2 2 1 38. 1 2 3a b 2u 2v 3 37. 3uv 1.6: Solving Equations Solve the given equation. 39. 3x= 12 40. 0.4 – 0.3p = 0.1(p + 4) 41. m 2 2 m3 m m m3 1.7: Rational Exponents and Radicals Write the expression in simplest radical form. 42. 16 3 43. x3y5 4 1.8: Quadratic Equations 44. 16x 2 y 3 Solve using the quadratic formula. 45. 2x2 – x – 6 = 0 46. 4x= -2x2 + 3 47. 2.1x2 – 4.7x – 6.2 = 0 1.9: Inequalities Find the values of x that satisfy the inequalities. 48. 6 x 2 4 49. (2x – 3)(x – 1) 0 50. x 2 2 x 1 Chapter 1…. In a NUTSHELL! 1. Natural, real 2. Whole, real 3. Integers, real 4. Rational, real 5. Irrational, real 6. Natural, real 7. Irrational, real 8. Natural, real 9. 625 10. -32 11. 8/27 12. -16 13. 256 14. 243y5 15. 1 16. -54/125 17. -7x + 5 18. 22x3 – 12x2 + 21x + 50 19. 6x5 20. 2(9m – 3n – 1) 21. 22x3 - 20x2 - 6x 22. –x – 1 23. (2m + 1)(m – 6) 24. (2a – b) (2a – b) 25. (x2 – 4y)(x2 + 4y) 26. (2x + 1)(x2 + 3) 27. (x – by)(ax – y) 28. 4/x 29. 4/3 x 1 30. x 1 x 2 31. 2x 3 1 32. x 2 k 1 33. k 2 bx ay 34. ab(x y) yx 35. xy 1 8y 6 36. 6 x 3 37. 2uv 2 38. 9a2b8 39. x= 4 40. p= 0 41. -3= 3; which is impossible. No solution. 42. 4 3 /3 43. x 3 y 5 /2 44. 4xy y 3 45. or 2 2 1 46. 1 2 10 47. 0.93 or 3.17 48. (-4, 6) 3 49. x 1 or x 2 50. x 0 or 1 x