Problem 182 of 7
Add rational expressions and interpret denominator restrictions: x/(x^2-9)+1/(x-3).
Hints
Using a hint is okay. It just tells the trainer to give you a little more review.
Hidden until you reveal it.
combine algebra and domain reasoning.
Hidden until you reveal it.
Combine algebra with original denominator restrictions.
Enter your answer
No answer yet
Correct
Your answer is equivalent to the expected form.
Solution
Walkthrough
Walkthrough shown
Full solution stays hidden until you ask for it.
1. Factor denominators and list restrictions.
2. Find the LCD and combine numerators.
3. Simplify while keeping original restrictions.
Use the worked steps, then substitute the final answer back into the original relationship to confirm it satisfies the prompt.
Omitting restrictions from denominators that cancel later.