For Exercises 69–84, find the zeros and their multiplicities. Consider using Descartes' rule of signs and the upper and lower bound theorem to limit your search for rational zeros. (See Example 10) 69. f(x) = 8x – 42x + 33x + 28 (Hint: See Exercise 61.) 6x – x? (Hint: See Exercise 62.) 70. f(x) - 57x + 70 72. f(x) = 3x – 16x + 5x + 90x (Hint: See Exercise 64.) 2x + 11x - 63x? - 50x + 40 71. f(x) = (Hint: See Exercise 63.) - 138x + 36
For Exercises 69–84, find the zeros and their multiplicities. Consider using Descartes' rule of signs and the upper and lower bound theorem to limit your search for rational zeros. (See Example 10) 69. f(x) = 8x – 42x + 33x + 28 (Hint: See Exercise 61.) 6x – x? (Hint: See Exercise 62.) 70. f(x) - 57x + 70 72. f(x) = 3x – 16x + 5x + 90x (Hint: See Exercise 64.) 2x + 11x - 63x? - 50x + 40 71. f(x) = (Hint: See Exercise 63.) - 138x + 36
Calculus: Early Transcendentals
8th Edition
ISBN:9781285741550
Author:James Stewart
Publisher:James Stewart
Chapter1: Functions And Models
Section: Chapter Questions
Problem 1RCC: (a) What is a function? What are its domain and range? (b) What is the graph of a function? (c) How...
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![For Exercises 69–84, find the zeros and their multiplicities. Consider using Descartes' rule of signs and the upper and lower
bound theorem to limit your search for rational zeros. (See Example 10)
69. f(x) = 8x – 42x + 33x + 28
(Hint: See Exercise 61.)
6x – x?
(Hint: See Exercise 62.)
70. f(x)
- 57x + 70
72. f(x) = 3x – 16x + 5x + 90x
(Hint: See Exercise 64.)
2x + 11x - 63x?
- 50x + 40
71. f(x) =
(Hint: See Exercise 63.)
-
138x + 36](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F1a440353-127d-4e33-bbe5-77d900a60397%2F3f425a0e-d3f2-4b86-978d-2f177b811cf5%2Fw57wqwl_processed.jpeg&w=3840&q=75)
Transcribed Image Text:For Exercises 69–84, find the zeros and their multiplicities. Consider using Descartes' rule of signs and the upper and lower
bound theorem to limit your search for rational zeros. (See Example 10)
69. f(x) = 8x – 42x + 33x + 28
(Hint: See Exercise 61.)
6x – x?
(Hint: See Exercise 62.)
70. f(x)
- 57x + 70
72. f(x) = 3x – 16x + 5x + 90x
(Hint: See Exercise 64.)
2x + 11x - 63x?
- 50x + 40
71. f(x) =
(Hint: See Exercise 63.)
-
138x + 36
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