CPM Homework Help : A2C Problem 4-120

The quadratic formula can be used to help solve $4x^{3} + 23x^{2} − 2x = 0$ . Show or explain how.

Hint:

Factor out the x.

$x\left(4x^{2} + 23x − 2\right) = 0$

Hint 2:

By Zero Product Property:

$x = 0$ or
$4x^{2} + 23x − 2 = 0$

More Help:

By Quadratic Formula:

$\textit{x}=\frac{-23\pm\sqrt{23^{2}-4(4)(-2)}}{2(4)}$

Now solve for $x$ .