Solve the equation.
-$$3 ^{( 10 - 2 x )} = 81$$
A) $\{ - 3 \}$
B) $\{ 3 \}$
C) $\{ 2 \}$
D) $\{ 4 \}$

Name: Solve the equation. -\[3 ^{( 10 - 2 x )} = 81\] A) $\{ - 3 \}$ B) $\{ 3 \}$ C) $\{ 2 \}$ D) $\{ 4 \}$
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Question

Quizplus · Accepted Answer

The equation can be rewritten as $3^{(10-2x)} = 3^4$ since $81 = 3^4$. Equating the exponents gives $10 - 2x = 4$. Solving for $x$, we get $2x = 6$, so $x = 3$.

Solve the Equation 3(10−2x)=813 ^{( 10 - 2 x )} = 813(10−2x)=81

Solve the Equation $3 ^{( 10 - 2 x )} = 81$