Precalculus Examples

$f (x) = x^{3} - 3 x^{2} - 28 x - 60$

Step 1

Set $x^{3} - 3 x^{2} - 28 x - 60$ equal to $0$ .

$x^{3} - 3 x^{2} - 28 x - 60 = 0$

Step 2

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

$x \approx 7.67028336$

Step 3