Precalculus Examples

$f (x) = x^{4} - 3 x^{3} - 3 x^{2} + 7 x + 3$

Step 1

Set $x^{4} - 3 x^{3} - 3 x^{2} + 7 x + 3$ equal to $0$ .

$x^{4} - 3 x^{3} - 3 x^{2} + 7 x + 3 = 0$

Step 2

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

$x \approx - 1.4428629, - 0.39191323, 1.68355551, 3.15122063$

Step 3