find the roots of the polynomial equation -x^3+5x^2 - 11x+55=0

Question

02-02-2016
Mathematics

contestada

find the roots of the polynomial equation -x^3+5x^2 - 11x+55=0

Respuesta :

Otras preguntas

which person could be practicing anabaptisim

Who was charlemange A. Pope of holy roman empire B. Wife of the last roman empire C. King of the franks D.Prime minister of carolingian dynasty

How does Obama help us understand his quote about the rule of law?

Which of the following is NOT a good way to reduce pollutants in paint shops? A) Use extra topcoat color to get better coverage B) Use a tintable primer. C)

Define the term chondroplasty

Nuclei that lie outside the ______ undergo spontaneous radioactive decay.

solve by completing y^2+7y+12=0

Beowulf began as a tale that was spoken some time during the 8th century It was not written down until 12th century ? True or false?

Imagine this scenario in a play ? What is the best way to write stage directions

Tutor O-Rama claims that their services will raise student SAT math scores at least 50 points. The average score on the math portion of the SAT is μ=350 and σ=3

Panoyin Panoyin · Answer 1 · 2016-02-02T00:28:59+01:00

  x³ + 5x² - 11x + 55 = 0
x²(x) + x²(5) - 11(x) - 11(5) = 0
  (x²(x + 5) - 11(x + 5) = 0
(x² - 11)(x + 5) = 0
x² - 11 = 0     or        x + 5 = 0
+ 11 + 11 - 5 - 5
x² = 11 or x = -5
  x = ±√(11) or x = -5

THere are three roots in the polynomial equation.