# Download e-book for iPad: College Algebra Essentials by Robert F. Blitzer

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**Example text**

153. 154. 155. Every rational number is an integer. Some whole numbers are not integers. Some rational numbers are not positive. Irrational numbers cannot be negative. The term x has no coefﬁcient. 2 Objectives ᕡ Use the product rule. ᕢ Use the quotient rule. ᕣ Use the zero-exponent ᕤ ᕥ ᕦ ᕧ ᕨ ᕩ rule. Use the negativeexponent rule. Use the power rule. Find the power of a product. Find the power of a quotient. Simplify exponential expressions. Use scientiﬁc notation. 159. In parts (a) and (b), complete each statement.

81. 82. 6 + (-4) = (- 4) + 6 11 # (7 + 4) = 11 # 7 + 11 # 4 6 + (2 + 7) = (6 + 2) + 7 6 # (2 # 3) = 6 # (3 # 2) (2 + 3) + (4 + 5) = (4 + 5) + (2 + 3) 7 # (11 # 8) = (11 # 8) # 7 2(-8 + 6) = - 16 + 12 -8(3 + 11) = - 24 + (-88) 18 Chapter P Prerequisites: Fundamental Concepts of Algebra 1 (x + 3) = 1, x ϶ - 3 (x + 3) 84. (x + 4) + [- (x + 4)] = 0 127. The difference between eight times a number and six more than three times the number 128. Eight decreased by three times the sum of a number and six 83.

148. 149. 150. 151. 152. 153. 154. 155. Every rational number is an integer. Some whole numbers are not integers. Some rational numbers are not positive. Irrational numbers cannot be negative. The term x has no coefﬁcient. 2 Objectives ᕡ Use the product rule. ᕢ Use the quotient rule. ᕣ Use the zero-exponent ᕤ ᕥ ᕦ ᕧ ᕨ ᕩ rule. Use the negativeexponent rule. Use the power rule. Find the power of a product. Find the power of a quotient. Simplify exponential expressions. Use scientiﬁc notation. 159.

### College Algebra Essentials by Robert F. Blitzer

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