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College Algebra 7th Edition Robert F Blitzer - Solutions
In Exercises 33–58, add or subtract as indicated. 3x + 2 3x + 4 + 3x + 6 3x + 4
In Exercises 33–44, add or subtract terms whenever possible. 4V/13x - 6V13x
Simplify each exponential expression in Exercises 23–64. (2x)
In Exercises 35–38, list all numbers from the given set that area. Natural numbers,b. Whole numbers,c. Integers,d. Rational numbers,e. Irrational numbers,f. Real numbers. {-9,-4, 0, 0.25, V3,9.2, V1007
In Exercises 15–58, find each product.(2x + 5)(2x - 5)
In Exercises 29–34, find the union of the sets.{e, m, p, t, y} ∪ Φ
In Exercises 34–35, write each number in scientific notation.3,590,000
In Exercises 33–58, add or subtract as indicated. x² - 2x x² + 3x + x² + x 2 x² + 3x
In Exercises 17–38, factor each trinomial, or state that the trinomial is prime.15x2 - 19x + 6
In Exercises 15–58, find each product.(5 - 7x)(5 + 7x)
In Exercises 35–38, list all numbers from the given set that area. Natural numbers,b. Whole numbers,c. Integers,d. Rational numbers,e. Irrational numbers,f. Real numbers. -7,-0.6, 0, V49, V50
In Exercises 33–44, add or subtract terms whenever possible. 6V17x8V17x
In Exercises 34–35, write each number in scientific notation.0.00725
Simplify each exponential expression in Exercises 23–64. 14 x X
In Exercises 33–58, add or subtract as indicated. x² - 4x X² - x - 6 4x - 4 x²-x-6
In Exercises 35–38, list all numbers from the given set that area. Natural numbers,b. Whole numbers,c. Integers,d. Rational numbers,e. Irrational numbers,f. Real numbers. {-11, -2,0,0.75, V5, TT, V64
In Exercises 17–38, factor each trinomial, or state that the trinomial is prime.2x2 + 3xy + y2
In Exercises 15–58, find each product.(4 - 3x)(4 + 3x)
In Exercises 33–44, add or subtract terms whenever possible. 4V13x6V13x
In Exercises 33–58, add or subtract as indicated. 4x - 10 x - 2 x - 4 x-2
In Exercises 36–37, perform the indicated operation and write the answer in decimal notation.(3 × 103)(1.3 × 102)
Simplify each exponential expression in Exercises 23–64. 30 x 10 X
In Exercises 36–37, perform the indicated operation and write the answer in decimal notation. 6.9 × 10³ 3 x 105
In Exercises 17–38, factor each trinomial, or state that the trinomial is prime.3x2 + 4xy + y2
In Exercises 33–44, add or subtract terms whenever possible. V8 + 3√2
In Exercises 35–38, list all numbers from the given set that area. Natural numbers,b. Whole numbers,c. Integers,d. Rational numbers,e. Irrational numbers,f. Real numbers. {-5, -0.3, 0, V2, V4}
Simplify each exponential expression in Exercises 23–64. 14 x -7 x
In Exercises 33–58, add or subtract as indicated. 2x + 3 3x - 6 3 - x 3x - 6 -)
In Exercises 17–38, factor each trinomial, or state that the trinomial is prime.6x2 - 5xy - 6y2
In Exercises 15–58, find each product.(3x2 + 4x)(3x2 - 4x)
In Exercises 33–44, add or subtract terms whenever possible. V20 + 6√5
In 2009, the United States government spent more than it had collected in taxes, resulting in a budget deficit of $1.35 trillion. In Exercises 38–40, you will use scientific notation to put a number like 1.35 trillion in perspective. Use 1012 for 1 trillion.Express 1.35 trillion in scientific
Simplify each exponential expression in Exercises 23–64. 30 X -10 X
In Exercises 17–38, factor each trinomial, or state that the trinomial is prime.6x2 - 7xy - 5y2
In Exercises 33–58, add or subtract as indicated. x² + 3x x² + x - 12 x² 12 x² + x - 12 2
In Exercises 39–48, factor the difference of two squares.x2 - 100
In Exercises 33–44, add or subtract terms whenever possible. V50x V8x
In Exercises 15–58, find each product.(1 - y5)(1 + y5)
Simplify each exponential expression in Exercises 23–64. (8x³)² 2
In 2009, the United States government spent more than it had collected in taxes, resulting in a budget deficit of $1.35 trillion. In Exercises 38–40, you will use scientific notation to put a number like 1.35 trillion in perspective. Use 1012 for 1 trillion. There are approximately 32,000,000
Give an example of a whole number that is not a natural number.
In Exercises 39–48, factor the difference of two squares.x2 - 144
In Exercises 15–58, find each product.(2 - y5)(2 + y5)
In Exercises 33–58, add or subtract as indicated. x² - 4x 9-x-zx 9-x x²-x-6
In Exercises 33–44, add or subtract terms whenever possible. V63x V28x
In 2009, the United States government spent more than it had collected in taxes, resulting in a budget deficit of $1.35 trillion. In Exercises 38–40, you will use scientific notation to put a number like 1.35 trillion in perspective. Use 1012 for 1 trillion.Use your scientific notation answers
Use the product rule to simplify the expressions in Exercises 41–44. In Exercises 43–44, assume that variables represent nonnegative real numbers. V300
Simplify each exponential expression in Exercises 23–64. (6x4)²
In Exercises 33–58, add or subtract as indicated. 3 x + 4 + 6 x + 5
Give an example of a rational number that is not an integer.
In Exercises 33–44, add or subtract terms whenever possible. 3V18+ 5V/50
In Exercises 39–48, factor the difference of two squares.36x2 - 49
In Exercises 15–58, find each product.(x + 2)2
Use the product rule to simplify the expressions in Exercises 41–44. In Exercises 43–44, assume that variables represent nonnegative real numbers. V12x²
Simplify each exponential expression in Exercises 23–64. 4 x 3
Give an example of a number that is an integer, a whole number, and a natural number.
In Exercises 39–48, factor the difference of two squares.64x2 - 81
In Exercises 33–58, add or subtract as indicated. 8 2 x-2 x-3 +
In Exercises 33–44, add or subtract terms whenever possible. 4√12 - 2√75
In Exercises 15–58, find each product.(x + 5)2
Simplify each exponential expression in Exercises 23–64. 3 --)³ y,
Use the product rule to simplify the expressions in Exercises 41–44. In Exercises 43–44, assume that variables represent nonnegative real numbers. V10x• V2x
Give an example of a number that is a rational number, an integer, and a real number.
In Exercises 33–58, add or subtract as indicated. 3 x + 1 3 x
In Exercises 39–48, factor the difference of two squares.9x2 - 25y2
In Exercises 33–44, add or subtract terms whenever possible. 3√8 - √32 + 3√72 - √75
Use the product rule to simplify the expressions in Exercises 41–44. In Exercises 43–44, assume that variables represent nonnegative real numbers. Vr³
Simplify each exponential expression in Exercises 23–64. 2 (-3x²y5)²
Determine whether each statement in Exercises 43–50 is true or false. -13-2
In Exercises 33–58, add or subtract as indicated. 4 3 x + 3
In Exercises 15–58, find each product.(2x + 3)2
In Exercises 33–44, add or subtract terms whenever possible. 3√54 - 2√24 - √96 + 4√63
Determine whether each statement in Exercises 43–50 is true or false. 7
Use the quotient rule to simplify the expressions in Exercises 45–46 121 √ 4
Simplify each exponential expression in Exercises 23–64. (-3x4y6)3
In Exercises 39–48, factor the difference of two squares.36x2 - 49y2
In Exercises 33–58, add or subtract as indicated. 2x x + 2 + x + 2 x - 2
In Exercises 15–58, find each product.(3x + 2)2
In Exercises 45–54, rationalize the denominator. 1 LA
Use the quotient rule to simplify the expressions in Exercises 45–46 V96x³ V2x (Assume that x > 0.)
In Exercises 39–48, factor the difference of two squares.x4 - 16
Simplify each exponential expression in Exercises 23–64. (3x4)(2x7)
Determine whether each statement in Exercises 43–50 is true or false. 4 ≥ −7
In Exercises 15–58, find each product.(x - 3)2
In Exercises 33–58, add or subtract as indicated. 3x x - 3 x + 4 x + 2
In Exercises 45–54, rationalize the denominator. 2 10
Determine whether each statement in Exercises 43–50 is true or false. -13 < -5
In Exercises 39–48, factor the difference of two squares.x4 - 1
Simplify each exponential expression in Exercises 23–64. (11x5) (9x¹2)
In Exercises 15–58, find each product.(x - 4)2
Simplify each exponential expression in Exercises 23–64. 20х24 10x6
Determine whether each statement in Exercises 43–50 is true or false. -π = -T
In Exercises 39–48, factor the difference of two squares.16x4 - 81
In Exercises 29–34, find the union of the sets.{1, 3, 5, 7} ∪ {2, 4, 6, 8, 10}
In Exercises 17–38, factor each trinomial, or state that the trinomial is prime.9x2 - 9x + 2
In Exercises 59–72, simplify each complex rational expression. 6 x² + 2x - 1 15 x + 5 + 1 1 x - 3
Simplify the radical expressions in Exercises 67–74 if possible. 阿阿
In Exercises 67–82, find each product.(3x - y)(2x + 5y)
In Exercises 67–74, express the distance between the given numbers using absolute value. Then find the distance by evaluating the absolute value expression.-6 and 8
In Exercises 75–82, add or subtract terms whenever possible. 4√2 + 3√/2
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