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OpenStudy (anonymous):
Find the roots of the polynomial equation. -x^3 + 5x^2 - 11x + 55 = 0
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OpenStudy (anonymous):
factor it
OpenStudy (anonymous):
-(x-5)*(x^2+11)
OpenStudy (anonymous):
so one zero is 5 and for the (x^2+11) part use the quadratic formula altho i think it is an imaginary.
OpenStudy (anonymous):
Factor and then use the Quadratic formula to get the roots
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