Question 20 • Algebra II
Rewrite log₂(x + 11) = 4 in exponential form: x + 11 = 2⁴ = 16, so x = 5. Substituting x = 5 gives log₂(16) = 4, which makes the equation true. Therefore, the correct choice is D: x = 5 is a true solution because log₂(16) = 4.
AI-written and checked against the verified answer.