Find the Roots (Zeros) f(x)=x^4-4x^3+2x^2+x+4

$f (x) = x^{4} - 4 x^{3} + 2 x^{2} + x + 4$

Step 1

Set $x^{4} - 4 x^{3} + 2 x^{2} + x + 4$ equal to $0$ .

$x^{4} - 4 x^{3} + 2 x^{2} + x + 4 = 0$

Step 2

Graph each side of the equation. The solution is the x-value of the point of intersection.

$x \approx 1.72483254, 3.12752861$

Step 3