Problem 99 of 7
Rewrite expression to expose meaningful grouping: (x^2-1)/(x-1).
Using a hint is okay. It just tells the trainer to give you a little more review.
Hidden until you reveal it.
factor, regroup, or substitute a sub-expression.
Hidden until you reveal it.
Use factoring, regrouping, or substitution to expose zeros, restrictions, or context units.
Enter your answer
Your answer is equivalent to the expected form.
Walkthrough
Full solution stays hidden until you ask for it.
1. Identify the feature to expose.
2. Choose factoring, completing square, or substitution.
3. Rewrite while preserving domain information.
Use the worked steps, then substitute the final answer back into the original relationship to confirm it satisfies the prompt.
Rewrite that changes domain without noting restrictions.