How  many roots does the polynomial have?

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter10: Sequences, Series, And Probability
Section10.5: The Binomial Theorem
Problem 50E
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How  many roots does the polynomial have?

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.

P(x)=-x^4+27x^3-198x^2+372x+1768

to find the roots, take P=0

-x^4+27x^3-198x^2+372x+1768=0

-\left(x^4-27x^3+198x^2-372x-1768\right)=0

x^4-27x^3+198x^2-372x-1768=0

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