Precalculus Examples

$h (x) = 2 x^{4} + 6 x^{3} - x^{2} - x - 7$

Step 1

Set $2 x^{4} + 6 x^{3} - x^{2} - x - 7$ equal to $0$ .

$2 x^{4} + 6 x^{3} - x^{2} - x - 7 = 0$

Step 2

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

$x \approx - 3.2127352, 1.04128597$

Step 3