Solve .
Answer and explanation
Correct answer: A. only
- Step 1: Combine: , so . Step 2. Roots are and , but the domain needs , so only . **Answer: . Why not the others:** makes undefined, and 8 ignores the second logarithm.
Practise more Algebra, Calculus, Geometry and Probability.
Free questions with an explanation for every one, and full timed NMT National Multi-Subject (Ukraine) mock tests.