Precalculus Examples

$f (x) = 5 x^{4} + 44 x^{2} - 36 x - 9$

Step 1

Set $5 x^{4} + 44 x^{2} - 36 x - 9$ equal to $0$ .

$5 x^{4} + 44 x^{2} - 36 x - 9 = 0$

Step 2

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

$x \approx - 0.20059494, 0.94091259$

Step 3