Precalculus Examples

$f (x) = x^{4} - 4 x^{3} - 3 x^{2} - 18 x$

Step 1

Set $x^{4} - 4 x^{3} - 3 x^{2} - 18 x$ equal to $0$ .

$x^{4} - 4 x^{3} - 3 x^{2} - 18 x = 0$

Step 2

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

$x \approx 0, 5.23123365$

Step 3