86 Chapter 1 The Set of Real Numbers Mixed Exercises For Exercises 63–70, use the associative property or distributive property to clear parentheses. 63. 64. 65. 4(6z) 66. 8(2p) 213 x2 514 y2 217x2 3111t2 411 x2 912 y2 67. 68. 69. 70. For Exercises 71–79, match each statement with the property that describes it. 6 1 6 1 714 92 17 429 213 k2 6 2k 3 7 7 3 5 152 0 18 1 18 13 72 19 3 17 192 23 6 6 23 3 0 3 a. Commutative property of addition b. Inverse property of multiplication c. Commutative property of multiplication d. Associative property of addition e. Identity property of multiplication f. Associative property of multiplication g. Inverse property of addition h. Identity property of addition i. Distributive property of multiplication over addition Term Coefficient Term Coefficient 82. x4 10xy 12 y 83. x 8y 9x2y 3 Term Coefficient Term Coefficient 71. 72. 73. 74. 75. 76. 77. 78. 79. Concept 5: Algebraic Expressions For Exercises 80–83, for each expression list the terms and their coefficients. (See Example 7.) 80. 3xy 6x2 y 17 81. 2x y 18xy 5 12x2 84. Explain why 12x and are not like terms. 85. Explain why 3x and 3xy are not like terms. 86. Explain why 7zand 113z are like terms. 87. Explain why p x and 8x are like terms. 88. Write three different like terms. 89. Write three terms that are not like.
miller_beginning_intermediate_algebra_4e_ch1_3
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