Answer
-3, 6
Work Step by Step
We factor to obtain:
$$x^2-3x-18 \\ (x-6)(x+3) \\ x=-3,6$$
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.