16. 17. PO)= x - 3x-24x + 3 (2) 18. P(X)--2x-3x+12x +1 (2) 19. POx) x-4x-2x +12x-5 (3) 20. P(x) = x - 10x+ 9 (3) In Exercises 21 to 26, find the real zeros of each polynomial function by factoring. The number in parentheses to the right of each polynomial indicates the number of real zeros of the given polynomial function. 21. P(x) = x³ - 2x² - 15x (3) %3D ubic) right nt d? 22. P(x) = x' – 6x² + 8x (3) 23. P(x) = x - 13x2 + 36 (4) 24. P(x) = 4x – 37x² + 9 (4) 25. P(x) = x – 5x³ + 4x (5) 26. P(x) = x – 25x³ + 144x (5) %3D In Exercises 27 to 36, use the Intermediate Value Theorem to verify that P has a zero between a and b. 27. P(x) = 2x³ + 3x² – 23x – 42; a = 3, b = 4 artic) 28. P(x) = 4xr' – x² – 6x + 1; a = 0, b = 1 29. P(x) = 3x³ + 7x² + 3x + 7; a = -3, b = -2 30. P(x) = 2x- 21x - 2x + 25; a = 1, b = 2 31. P(x) = 4x* + 7x - 11x+7x-15; a 1,b-1; P(x) = 5x - 16xr- 20x + 64; a = 3, b = 3- %3D

College Algebra
7th Edition
ISBN:9781305115545
Author:James Stewart, Lothar Redlin, Saleem Watson
Publisher:James Stewart, Lothar Redlin, Saleem Watson
Chapter3: Polynomial And Rational Functions
Section: Chapter Questions
Problem 9T
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16.
17. PO)= x - 3x-24x + 3
(2)
18. P(X)--2x-3x+12x +1 (2)
19. POx) x-4x-2x +12x-5
(3)
20. P(x) = x - 10x+ 9
(3)
In Exercises 21 to 26, find the real zeros of each polynomial
function by factoring. The number in parentheses to the
right of each polynomial indicates the number of real zeros
of the given polynomial function.
21. P(x) = x³ - 2x² - 15x
(3)
%3D
ubic)
right
nt d?
22. P(x) = x' – 6x² + 8x
(3)
23. P(x) = x - 13x2 + 36
(4)
24. P(x) = 4x – 37x² + 9
(4)
25. P(x) = x – 5x³ + 4x
(5)
26. P(x) = x – 25x³ + 144x
(5)
%3D
In Exercises 27 to 36, use the Intermediate Value Theorem
to verify that P has a zero between a and b.
27. P(x) = 2x³ + 3x² – 23x – 42; a = 3, b = 4
artic)
28. P(x) = 4xr' – x² – 6x + 1; a = 0, b = 1
29. P(x) = 3x³ + 7x² + 3x + 7; a = -3, b = -2
30. P(x) = 2x- 21x - 2x + 25; a = 1, b = 2
31. P(x) = 4x* + 7x - 11x+7x-15; a 1,b-1;
P(x) = 5x - 16xr- 20x + 64; a = 3, b = 3-
%3D
Transcribed Image Text:16. 17. PO)= x - 3x-24x + 3 (2) 18. P(X)--2x-3x+12x +1 (2) 19. POx) x-4x-2x +12x-5 (3) 20. P(x) = x - 10x+ 9 (3) In Exercises 21 to 26, find the real zeros of each polynomial function by factoring. The number in parentheses to the right of each polynomial indicates the number of real zeros of the given polynomial function. 21. P(x) = x³ - 2x² - 15x (3) %3D ubic) right nt d? 22. P(x) = x' – 6x² + 8x (3) 23. P(x) = x - 13x2 + 36 (4) 24. P(x) = 4x – 37x² + 9 (4) 25. P(x) = x – 5x³ + 4x (5) 26. P(x) = x – 25x³ + 144x (5) %3D In Exercises 27 to 36, use the Intermediate Value Theorem to verify that P has a zero between a and b. 27. P(x) = 2x³ + 3x² – 23x – 42; a = 3, b = 4 artic) 28. P(x) = 4xr' – x² – 6x + 1; a = 0, b = 1 29. P(x) = 3x³ + 7x² + 3x + 7; a = -3, b = -2 30. P(x) = 2x- 21x - 2x + 25; a = 1, b = 2 31. P(x) = 4x* + 7x - 11x+7x-15; a 1,b-1; P(x) = 5x - 16xr- 20x + 64; a = 3, b = 3- %3D
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