### Home > A2C > Chapter Ch4 > Lesson 4.2.4 > Problem 4-120

4-120.

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

Factor out the *x*.

*x*(4*x*^{2} + 23*x* − 2) = 0

By Zero Product Property:

*x* = 0 or

4*x*^{2} + 23*x* − 2 = 0

By Quadratic Formula:

Now solve for *x*.