Precalculus Examples

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

Step 1

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

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

Step 2

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

$x \approx 0.71831169, 1.70211027$

Step 3