3. For the function f(x) = 2x* – 5x³ + 9x² + x – 15: %3D State the degree of the polynomial State the number of zeros the polynomial function will have. C. Use the Rational Zero Theorem to find all of the possible rational zeros

Algebra and Trigonometry (MindTap Course List)
4th Edition
ISBN:9781305071742
Author:James Stewart, Lothar Redlin, Saleem Watson
Publisher:James Stewart, Lothar Redlin, Saleem Watson
Chapter3: Polynomial And Rational Functions
Section3.4: Real Zeros Of Polynomials
Problem 1E: If the polynomial function Px=anxn+an-1xn-1++a1x+a0 has integer coefficients, then the only numbers...
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3.
For the function f(x) = 2x4 – 5x3 + 9x² + x – 15:
a.
State the degree of the polynomial
b.
State the number of zeros the polynomial function will have.
c. Use the Rational Zero Theorem to find all of the possible rational zeros
d. Look at the graph or Table on a graphing calculator to determine which numbers on the list of
rational zeros are real zeros indicated by the x-intercepts of the graph.
In the space below, use synthetic division to verify one rational zero.
Note: If the division remainder is zero, the number divided is a zero of the function.
е.
f. Find all remaining zeros. (Show work!)
Note: Use the reduced polynomial (the quotient from the division) to continue the search for zeros
© If the degree of the reduced polynomial is higher than 2, continue the synthetic division process
with another real zero. (Remember: a number may be a multiple zero – i.e. occur more than
once )
© Whenever the reduced polynomial is quadratic, the zeros can be found by using methods for
solving quadratic equations.
g.
List all of the zeros of the polynomial function
h. Write the polynomial function as a product of linear factors.
Transcribed Image Text:3. For the function f(x) = 2x4 – 5x3 + 9x² + x – 15: a. State the degree of the polynomial b. State the number of zeros the polynomial function will have. c. Use the Rational Zero Theorem to find all of the possible rational zeros d. Look at the graph or Table on a graphing calculator to determine which numbers on the list of rational zeros are real zeros indicated by the x-intercepts of the graph. In the space below, use synthetic division to verify one rational zero. Note: If the division remainder is zero, the number divided is a zero of the function. е. f. Find all remaining zeros. (Show work!) Note: Use the reduced polynomial (the quotient from the division) to continue the search for zeros © If the degree of the reduced polynomial is higher than 2, continue the synthetic division process with another real zero. (Remember: a number may be a multiple zero – i.e. occur more than once ) © Whenever the reduced polynomial is quadratic, the zeros can be found by using methods for solving quadratic equations. g. List all of the zeros of the polynomial function h. Write the polynomial function as a product of linear factors.
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