Solve the equation.
-$$81 ^ { x } = 3$$
A) $\{ - 4 \}$
B) $\{ 4 \}$
C) $\left\{ \frac { 1 } { 4 } \right\}$
D) $\left\{ - \frac { 1 } { 4 } \right\}$

Name: Solve the equation. -\[81 ^ { x } = 3\] A) $\{ - 4 \}$ B) $\{ 4 \}$ C) $\left\{ \frac { 1 } { 4 } \right\}$ D) $\left\{ - \frac { 1 } { 4 } \right\}$
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Question

Quizplus · Accepted Answer

Since $81 = 3^4$, the equation can be rewritten as $3^{4x} = 3^1$. Therefore, $4x = 1$, which means $x = \frac{1}{4}$.

Solve the Equation 81x=381 ^ { x } = 381x=3 A) {−4}\{ - 4 \}{−4}

Solve the Equation $81 ^ { x } = 3$ A) $\{ - 4 \}$