Precalculus Examples

$f (x) = x^{5} + 2 x^{4} - 6 x^{3} - 25 x^{2} + 8 x + 8$

Step 1

Set $x^{5} + 2 x^{4} - 6 x^{3} - 25 x^{2} + 8 x + 8$ equal to $0$ .

$x^{5} + 2 x^{4} - 6 x^{3} - 25 x^{2} + 8 x + 8 = 0$

Step 2

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

$x \approx - 0.44801561, 0.69812301, 2.81072147$

Step 3