Answer
$\frac{-2a^{10}}{b^{5}}$
Work Step by Step
$\frac{8a^{17}b^{5}}{-4a^{7}b^{10}}=\frac{8a^{17-7}b^{5-10}}{-4}=\frac{8a^{10}b^{-5}}{-4}=\frac{2a^{10}b^{-5}}{-1}=\frac{-2a^{10}}{b^{5}}$
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.