Answer
$\dfrac{1}{x^{14}}$
Work Step by Step
Use the rule $a^m\cdot a^n=a^{m+n}$ to obtain:
$x^{-4}\cdot x^{-10} = x^{-4+(-10)} = x^{-14}$
Use the rule $a^{-m} = \dfrac{1}{a^m}, m \gt 0$ to obtain:
$x^{-14}=\dfrac{1}{x^{14}}$
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.