Precalculus Examples

$9 x^{3} + 8 x^{2} - 4 = - x + 16 x + 12$

Step 1

Add $- x$ and $16 x$ .

$9 x^{3} + 8 x^{2} - 4 = 15 x + 12$

Step 2

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

$x \approx 1.34145972$

Step 3