Answer
$x=-\frac{1}{2}$
Work Step by Step
$\displaystyle \frac{1}{x^{3}}+\frac{4}{x^{2}}+\frac{4}{x}=0$
We multiply through by $x^3$:
$1+4x+4x^{2}=0$
Now we factor and solve:
$(1+2x)^{2}=0$
$1+2x=0$
$2x=-1$
$x=-\frac{1}{2}$
You can help us out by revising, improving and updating this answer.
Update this answerAfter you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.