Precalculus Examples

$f (x) = 2 x^{3} - 5 x^{2} + 7 x - 5$

Step 1

Set $2 x^{3} - 5 x^{2} + 7 x - 5$ equal to $0$ .

$2 x^{3} - 5 x^{2} + 7 x - 5 = 0$

Step 2

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

$x \approx 1.28929506$

Step 3