Problem 85 of 7
Solve radical equation that produces extraneous solution: sqrt(x+1)=x-1.
Hints
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Hidden until you reveal it.
substitute candidates into original equation.
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Substitute candidates into original equation and reject extraneous roots.
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Correct
Your answer is equivalent to the expected form.
Solution
Walkthrough
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1. Solve the squared equation.
2. List all candidate solutions.
3. Check each candidate in the original radical equation.
Use the worked steps, then substitute the final answer back into the original relationship to confirm it satisfies the prompt.
All roots from squared equation without checking.