166 CHAPTER 1 Equations and Inequalities 57. 22x + 5 - 2x + 2 = 1 58. 24x + 1 - 2x - 1 = 2 59. 23x = 25x + 1 - 1 60. 22x = 23x + 12 - 2 61. 2x + 2 = 1 - 23x + 7 62. 22x - 5 = 2 + 2x - 2 63. 3227x + 2 = 23x + 2 64. 3322x + 3 = 25x - 6 65. 3 - 2x = 322x - 3 66. 2x + 2 = 34 + 72x 67. 23 4x + 3 = 23 2x - 1 68. 23 2x = 23 5x + 2 69. 23 5x2 - 6x + 2 - 23 x = 0 70. 23 3x2 - 9x + 8 = 23 x 71. 24 x - 15 = 2 72. 24 3x + 1 = 1 73. 24 x2 + 2x = 24 3 74. 24 x2 + 6x = 2 Solve each equation. See Example 7. 75. x3/2 = 125 76. x5/4 = 32 77. 1x2 + 24x21/4 = 3 78. 13x2 + 52x21/4 = 4 79. 1x - 322/5 = 4 80. 1x + 20022/3 = 36 81. 12x + 521/3 - 16x - 121/3 = 0 82. 13x + 721/3 - 14x + 221/3 = 0 83. 12x - 122/3 = x1/3 84. 1x - 322/5 = 14x21/5 85. x2/3 = 2x1/3 86. 3x3/4 = x1/2 Solve each equation. See Examples 8 and 9. 87. 2x4 - 7x2 + 5 = 0 88. 4x4 - 8x2 + 3 = 0 89. x4 + 2x2 - 15 = 0 90. 3x4 + 10x2 - 25 = 0 91. 1x - 122/3 + 1x - 121/3 - 12 = 0 92. 12x - 122/3 + 212x - 121/3 - 3 = 0 93. 1x + 122/5 - 31x + 121/5 + 2 = 0 94. 1x + 522/3 + 1x + 521/3 - 20 = 0 95. 41x + 124 - 131x + 122 = -9 96. 251x - 524 - 1161x - 522 = -64 97. 61x + 224 - 111x + 222 = -4 98. 81x - 424 - 101x - 422 = -3 99. 10x-2 + 33x-1 - 7 = 0 100. 7x-2 - 10x-1 - 8 = 0 101. x-2/3 + x-1/3 - 6 = 0 102. 2x-2/5 - x-1/5 - 1 = 0 103. 16x-4 - 65x-2 + 4 = 0 104. 625x-4 - 125x-2 + 4 = 0 51. 24x - x + 3 = 0 52. 22x - x + 4 = 0 53. 2x - 2x - 5 = 1 54. 2x - 2x - 12 = 2 55. 2x + 7 + 3 = 2x - 4 56. 2x + 5 + 2 = 2x - 1
RkJQdWJsaXNoZXIy NjM5ODQ=