Question

Approximate the real number solution(s) to the polynomial function f(x) = x3 – 2x2 – 5x + 6 .

Answer 1

one solution is 1 as f(1) = 0

Answer 2

I need two more thoughh

Answer 3

do you know how to divide polynomials?

Answer 4

i.e. can you divide
x3 – 2x2 – 5x + 6 by x-1
?

Answer 5

-2,3

Answer 6

dividing be x-1 gives x^2-x-6 = (x-3)(x+2)

so solutions are 1,3, -2

Answer 7

Yes you should learn how to divide polynomials if you do not already know, that is how Jimmyrep did the problem.

Answer 8

Check this link for a detailed example for polynomial division.

http://www.sosmath.com/algebra/factor/fac01/fac01.html