Exam Review #1 (solutions)

66 2 3x 16 y 5 3x 17 y 8 y 14 2 10 10 2 6 x 2 2 6 10

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Unformatted text preview: 10 14 18. 2 6x 2 2 6 2 2 13 y 19. 34 5 6 3 5 7 6 8 9 10 8 9 0 2 1 2.5 20. 21. 0 5 23 5 7 10 4 15 20 20 6 5 44 73 21 , 21 8 10 10 12 68. 7 43 130 116 x2 23. 24. , , 16 8 11 11 4 1 3y8 26. 27. r17 28. m18 45 27 xy 2x2 2 15 ± 205 30. 6 ± 35 31. 18 5x 2 5 no solution 33. 1, 2 34. no solution one solution 36. two solutions 20x4 x 1 38. 6t3 t2 t 10 x4 4x2 1 40. 0.57m4 20.9m 3 2 3r 2r 8 42. 6y2 19y 7 6t2 3t 18 44. 28 26x 6x2 2.2q2 8.3q 2 46. s2 1s 1 4 8 2 2 x 12x 36 48. 4y 4y 1 2 2 16s 16s 4 50. x 4.6x 5.29 12 1 2 1 52. 25w 12w 1.44 16 x 2x 25 113 1, 3, 2 54. 8, 2, 4 55. 0.4556, 0.7714 8 6, 81, 2 57. 2n 1 2 4x 7 4x 7 59. 2x 3 x 3 3x 1 2x 2 61. y 3 3y 1 1 3 1x 2 63. 6 4x2 5 2x 2 7 a 2 a 2 65. 9u 2u 1 x2 x2 5 67. t 9 t 9 t 1 c3 1 c 2...
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