Problem 221 of 7
Correct the rational-expression operation error: A student simplifies (x^2-4)/(x-2) to x+2 without stating restrictions.
Using a hint is okay. It just tells the trainer to give you a little more review.
Hidden until you reveal it.
catch cancellation, common denominator, reciprocal, sign, and restriction mistakes.
Hidden until you reveal it.
Correction must address cancellation, common denominator, reciprocal, sign, or restriction mistake.
Enter your answer
Your answer is equivalent to the expected form.
Walkthrough
Full solution stays hidden until you ask for it.
1. Identify the fraction-operation rule violated.
2. Rewrite the step using the correct rule.
3. State any necessary restrictions.
Use the worked steps, then substitute the final answer back into the original relationship to confirm it satisfies the prompt.
Only marking the answer wrong without fixing the method.