CALCULUS FOR BUSINESS...-MYLAB ACESS
14th Edition
ISBN: 9780135903896
Author: Barnett
Publisher: PEARSON
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Textbook Question
Chapter DPT, Problem 49E
In Problems 45–50, solve for x.
49.
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In Problems 57–68, solve each equation in the real number system.
57. x* - x + 2x?
- 4x - 8 = 0
58. 2x + 3x? + 2x + 3 = 0
59. 3x + 4x? - 7x + 2 = 0
60. 2x – 3x –- 3x – 5 = 0
234
CHAPTER 4 Polynomial and Rational Functions
61. 3x – x? - 15x + 5 = 0
62. 2x - 11x² + 10x + 8 = 0
63. x* + 4x + 2r? - x + 6 = 0
64. x* - 2x + 10x?
- 1&r + 9 == (0
8
+x +1 = 0
65. x
66. х +
+ 3x - 2 = 0
67. 2x - 19x + 57x - 64x + 20 = 0
68. 2x + x - 24x + 20x + 16 = 0
In Problems 1–6, use ZERO (or ROOT) to approximate the smaller of the two x-intercepts of each equation. Express the answer rounded
to two decimal places.
1. y = x? + 4x + 2
4. y = 3x? + 5x + 1
2. y = x? + 4x – 3
3. y = 2x? + 4x + 1
5. y = 2r – 3x – 1
6. y = 2x? – 4x – 1
In Problems 23–30, use the given zero to find the remaining zeros of each function.
23. f(x) = x - 4x² + 4x – 16; zero: 2i
24. g(x) = x + 3x? + 25x + 75; zero: -5i
25. f(x) = 2x* + 5x + 5x? + 20x – 12; zero: -2i
26. h(x) = 3x4 + 5x + 25x? + 45x – 18; zero: 3i
%3D
27. h(x) = x* – 9x + 21x? + 21x – 130; zero: 3 - 2i
29. h(x) = 3x³ + 2x* + 15x³ + 10x2 – 528x – 352; zero: -4i
28. f(x) = x* – 7x + 14x2 – 38x – 60; zero:1 + 3i
30. g(x) = 2x – 3x* – 5x – 15x² – 207x + 108; zero: 3i
Chapter DPT Solutions
CALCULUS FOR BUSINESS...-MYLAB ACESS
Ch. DPT - Work all of the problems in this self-test without...Ch. DPT - Work all of the problems in this self-test without...Ch. DPT - Work all of the problems in this self-test without...Ch. DPT - Work all of the problems in this self-test without...Ch. DPT - Work all of the problems in this self-test without...Ch. DPT - Work all of the problems in this self-test without...Ch. DPT - Work all of the problems in this self-test without...Ch. DPT - Work all of the problems in this self-test without...Ch. DPT - Work all of the problems in this self-test without...Ch. DPT - Work all of the problems in this self-test without...
Ch. DPT - Work all of the problems in this self-test without...Ch. DPT - Work all of the problems in this self-test without...Ch. DPT - Work all of the problems in this self-test without...Ch. DPT - Work all of the problems in this self-test without...Ch. DPT - Work all of the problems in this self-test without...Ch. DPT - Give an example of an integer that is not a...Ch. DPT - Prob. 17ECh. DPT - Prob. 18ECh. DPT - Prob. 19ECh. DPT - Prob. 20ECh. DPT - Prob. 21ECh. DPT - In Problems 1724, simplify and write answers using...Ch. DPT - Prob. 23ECh. DPT - Prob. 24ECh. DPT - In Problems 2530, perform the indicated operation...Ch. DPT - In Problems 2530, perform the indicated operation...Ch. DPT - In Problems 2530, perform the indicated operation...Ch. DPT - Prob. 28ECh. DPT - In Problems 2530, perform the indicated operation...Ch. DPT - In Problems 2530, perform the indicated operation...Ch. DPT - Each statement illustrates the use of one of the...Ch. DPT - Round to the nearest integer: (A)173 (B)519Ch. DPT - Multiplying a number x by 4 gives the same result...Ch. DPT - Find the slope of the line that contains the...Ch. DPT - Find the x and y coordinates of the point at which...Ch. DPT - Find the x and y coordinates of the point at which...Ch. DPT - In Problems 37 and 38, factor completely....Ch. DPT - In Problems 37 and 38, factor completely....Ch. DPT - In Problems 3942, write in the form axp + byq...Ch. DPT - Prob. 40ECh. DPT - Prob. 41ECh. DPT - In Problems 3942, write in the form axp + byq...Ch. DPT - Prob. 43ECh. DPT - Prob. 44ECh. DPT - In Problems 4550, solve for x. 45.x2=5xCh. DPT - In Problems 4550, solve for x. 46.3x221=0Ch. DPT - In Problems 4550, solve for x. 47.x2x20=0Ch. DPT - In Problems 4550, solve for x. 48.6x2+7x1=0Ch. DPT - In Problems 4550, solve for x. 49.x2+2x1=0Ch. DPT - In Problems 4550, solve for x. 50.x46x2+5=0
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