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

· Is ruled by a head of government and a head of state · Often has a bicameral legislative branch · United Kingdom, Canada, and Australia are examples These

Please help this nouns

The length of a rectangle is 6 units and its width is 4 units. What is the approximate length of the diagonal of the rectangle? 2 units 4.4 units 6 units 7.

Which of the following is not a type of galaxy? Random galaxy Irregular galaxy Spiral galaxy Elliptical galaxy

Alex could earn at the tech internship

how do you solve for r. -2r-5=18

What does cheese mean turkish?

The fastest on the farm flies at a unit rate of 80 miles per hour. At this rate, how far will she fly in 4 hours?

15. Simplify 2^1/3×4^1/3 using the radical form

AP Psych Which language theorist would have been most likely to emphasize that children master the rule for forming the past tense of regular verbs like "push"

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.