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OpenStudy (anonymous):
Find the roots of the polynomial equation. -x3 + 5x2 - 11x + 55 = 0
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OpenStudy (anonymous):
http://www.wolframalpha.com/input/?i=solve+-x%5E3+%2B+5x%5E2+-+11x+%2B+55+%3D+0
OpenStudy (anonymous):
\[ -x^3+5 x^2-11 x+55=(5-x) \left(x^2+11\right)=0 \] x=5 is the only real root
OpenStudy (anonymous):
Thank you
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