Solve: $\log _ {x } 81 = 4$
A) $\{ 12 \}$
B) $\{ - 12 \}$
C) $\{ - 3 \}$
D) $\{ 3 \}$

Name: Solve: $\log _ {x } 81 = 4$ A) $\{ 12 \}$ B) $\{ - 12 \}$ C) $\{ - 3 \}$ D) $\{ 3 \}$
Brand: Quizplus
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Question

Quizplus · Accepted Answer

The equation $\log _ {x } 81 = 4$ can be rewritten in exponential form as $x^4 = 81$. The number that raised to the power of 4 equals 81 is 3, because $3^4 = 81$. Therefore, the correct answer is $\{ 3 \}$.

Solve log⁡x81=4\log _ {x } 81 = 4logx​81=4 A) {12}\{ 12 \}{12}

Solve $\log _ {x } 81 = 4$ A) $\{ 12 \}$