Precalculus Examples

$20 x^{4} + 52 x^{3} - 45 x^{2} + 5 x + 1 = 0$

Step 1

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

$x \approx - 3.30277563, - 0.1, 0.30277563, \frac{1}{2}$

Step 2