Answer
See below
Work Step by Step
The term with $x^5$ is:
$$_{10}C_5x^5(-2)^5\\=\frac{10!}{5!\times5!}(-2)^5x^5\\=-8064x^5$$
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.