In Problems 45–56, use the Rattonal Zeros Theorem to find all the real zeros of each polynomial function. Use the zeros to factor f over the real numbers. 45. f(x) = x² + 2x? - 5x – 6 46. f(x) x3 + 8x? + 11x - 20 47. f(x) = 2x – x² + 2x – 1 Tor 48. f(x) = 2r³ + x² + 2x + 1 201 49. f(x) = 2x - 4x2 - 10x + 20 %3D 50. f(x) = 3x³ + 6x² – 15x – 30 0bort 201 53. f(x) = x + x - 3x2 - x + 2 51. f(x) = 2x + x³ – 7x² – 3x + 3 52. f(x) = 2x - x³ - 5x² + 2x + 2 54. f(x) = x* – xr³ – 6x² + 4x + 8 EA55. f(x) = 4x + 5x³ + 9x² + 10x + 2 56. f(x) = 3x + 4x3 + 7x² + &x + 2 %3D
In Problems 45–56, use the Rattonal Zeros Theorem to find all the real zeros of each polynomial function. Use the zeros to factor f over the real numbers. 45. f(x) = x² + 2x? - 5x – 6 46. f(x) x3 + 8x? + 11x - 20 47. f(x) = 2x – x² + 2x – 1 Tor 48. f(x) = 2r³ + x² + 2x + 1 201 49. f(x) = 2x - 4x2 - 10x + 20 %3D 50. f(x) = 3x³ + 6x² – 15x – 30 0bort 201 53. f(x) = x + x - 3x2 - x + 2 51. f(x) = 2x + x³ – 7x² – 3x + 3 52. f(x) = 2x - x³ - 5x² + 2x + 2 54. f(x) = x* – xr³ – 6x² + 4x + 8 EA55. f(x) = 4x + 5x³ + 9x² + 10x + 2 56. f(x) = 3x + 4x3 + 7x² + &x + 2 %3D
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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Transcribed Image Text:In Problems 45–56, use the Rational Zeros Theorem to find all the real zeros of each polynomial function. Use the zeros to factor fover
the real numbers.
45. f(x) = x³ + 2r? – 5x – 6
46. f(x) = x³ + 8x² + 11x – 20
47. f(x) = 2x³ – x² + 2x – 1
48. f(x) = 2x³ + x² + 2x + 1
19. f(x) = 2r³ – 4x² – 10x + 20
50. f(x) = 3x³ + 6x² – 15x – 30
Abot
53. f(x) = x* + x³ - 3x? - x + 2
51. f(x) = 2x* + x³ – 7x² – 3x + 3
52. f(x) = 2x* – x² - 5x² + 2x + 2
54. f(x) = xª – xr³ – 6x² + 4x + 8
EO55. f(x) = 4x + 5x³ + 9x² + 10x + 2
56. f(x) = 3x* + 4x³ + 7x² + &x + 2
bobivib
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