Problem 111 of 7
Interpret all algebraic solutions in context for logarithmic equation gives x=0 and x=4, but x=0 is outside log domain.
Using a hint is okay. It just tells the trainer to give you a little more review.
Hidden until you reveal it.
reject extraneous or nonviable roots.
Hidden until you reveal it.
Check extraneous roots, domain restrictions, and context viability.
Enter your answer
Your answer is equivalent to the expected form.
Walkthrough
Full solution stays hidden until you ask for it.
1. List algebraic solutions.
2. Check each in the original equation and domain.
3. Reject nonviable values and state the contextual answer.
Use the worked steps, then substitute the final answer back into the original relationship to confirm it satisfies the prompt.
Negative time, invalid length, zero denominator, and extraneous radical/log roots.