Question

find all the roots of the following polynomial
x(cubed)-4x(squared)-2x+3

Answer 1

one root is -1 by hit and trial ............hope u can find the rest by horners method

Answer 2

please clarify further the horners method

Answer 3

or u can simply use division method

Answer 4

x=-1 is a root of given equation........
so (x+1) will be one of its factors.....
so...........divide the given equation by x+1
u will get a quadratic equation then factorise it to get the roots

Answer 5

right?

Answer 6

let me try

Answer 7

how did you know that -1 is one of the roots?

Answer 8

hit and trial method
we substitute arbitrary values like 0,1,-1,2,-2...........
anad check which satisfies the given equation,,,,,,,,