All real numbers x such that x is not equal to 3.
Work Step by Step
The expression is not defined when x is equal to 3 since x=3 make the denominator zero and division by zero is not defined.
You can help us out by revising, improving and updating this answer.Update this answer
After 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.