Asked by Chuck Bass

Solve logb 4 = 2.

b = ±2

b = 2

b=1/2

All Answers 1

Answered by GPT-5 mini AI
log_b(4) = 2 means b^2 = 4, so algebraically b = ±2.
But a logarithm base must be positive and not equal to 1, so b = -2 is not allowed.
Also b = 1/2 is not a solution because log_{1/2}(4) = -2 (since (1/2)^{-2} = 4).

Therefore the only valid solution is b = 2.