Precalculus Examples

$2 x^{4} - 7 x^{3} - 18 x^{2} - 42 x + 36$

Step 1

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

$x \approx 0.64345825, 5.65065972$

Step 2

$[\begin{array}{c} x^{2} & \frac{1}{2} \\ \sqrt{π} & \int x d x \end{array}]$