Use synthetic division to perform each division. Consider the polynomial function (x) = x 3 - 5x
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Use synthetic division to perform each division.
Consider the polynomial function ƒ(x) = x3 - 5x2 + 2x + 7.
(a) Use the intermediate value theorem to show that ƒ has a zero between 1 and 2.
(b) Use Descartes’ rule of signs to determine the different possibilities for the numbers of positive, negative, and nonreal complex zeros.
(c) Use a graphing calculator to find all real zeros to as many decimal places as the calculator will give.
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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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