Question

use the rational root theorem to list all possible rational roots for each equation then find any actual rational roots x^3+9x^2+19x-4=0

Answer 1

take the factors of the constant of the equation and use synthetic division

Answer 2

can u help

Answer 3

factors of -4: -4, -2, -1, 1, 2, 4

Answer 4

When using synthetic division, you will be able to find the root of x^3+9x^2+19x-4=0

When x^3+9x^2+19x-4=0 is divided by one of the factor of -4, in this case, i picked -1. The remainder is not 0, therefore, -1 is not a root of x