Seudónimo Seudónimo

02-04-2021
Mathematics

contestada

Find all the roots of the polynomial equation

x^3-2x^2+5x-10=0

Respuesta :

Аноним Аноним

02-04-2021

Step-by-step explanation:

x^3+x^2+4x+4=0

x³+x²+4x=-4

x(x²+x+4)=-4

either

x=-4

or

x²+x+4=-4

x²+x+4+4=0

x²+x+8=0

comparing with ax² +bx+c

a=1

b=1

c=8

x={-1±√{1²-4×1×8}}/2×1

x={-1±√{-31}}/2

Answer Link

Otras preguntas

Can someone help with finding the coordinates and particular PART B.

Which statement about William Lloyd Garrison's newspaper the Liberator is true? A) It was only published for a very short time. B) It stopped publishing when t

Is it true or false that knights could not testify in court against landowning nobles?

How can spell check be an effective tool

Approximately how many downloads were there between 4 p.m. and 5 p.m.

Factory → air → plants → Animals Which process is the arrow between the factory and the air likely to represent?A. Burning fossil fuels B. Growing plants for fo

Whats is water? Good Explanation

If a rope is 36 feet long and cut into 8 sections what is the length in feet of each section

If f(x)=1/7-9, then f^-1(x)=

maurice puts $25 in his saving account every month. Use a caculator to find how much money he will save in a year