For each polynomial function, complete the following in order. (a) Use Descartes rule of signs to determine
Question:
For each polynomial function, complete the following in order.
(a) Use Descartes’ rule of signs to determine the different possibilities for the numbers of positive, negative, and nonreal complex zeros.
(b) Use the rational zeros theorem to determine the possible rational zeros.
(c) Use synthetic division with the boundedness theorem where appropriate and/or factoring to find the rational zeros, if any.
(d) Find all other complex zeros (both real and nonreal), if any.
ƒ(x) = 2x5 + 5x4 - 9x3 - 11x2 + 19x - 6
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x 2x 5 5x 4 9x 3 11x 2 19x 6 a has three variations in sign so f has 3 or 3 2 1 positive real zeros ...View the full answer
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Related Book For 
College Algebra
ISBN: 978-0134697024
12th edition
Authors: Margaret L. Lial, John Hornsby, David I. Schneider, Callie Daniels
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