Precalculus Examples

$x^{4} - 5 x^{3} + 6 x^{2} - x - 2$

Step 1

Set $x^{4} - 5 x^{3} + 6 x^{2} - x - 2$ equal to $0$ .

$x^{4} - 5 x^{3} + 6 x^{2} - x - 2 = 0$

Step 2

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

$x \approx - 0.43310714, 3.35222436$

Step 3