Solve the Equation $$5 ^ { 2 x } - 3 \left( 5 ^ { x } \right) = 40$$

question 446

Multiple Choice

Solve the equation. Give the answer in exact form.
- $$5 ^ { 2 x } - 3 \left( 5 ^ { x } \right) = 40$$

• A) \(\left\{ \log _ { 5 } 8 , \log _ { 5 } ( - 5 ) \right\}\)
• B) \(\left\{ \log _ { 5 } 8 \right\}\)
• C) \(\{ 5 \ln 8,5 \ln ( - 5 ) \}\)
• D) \(\{ 5 \ln 8 \}\)

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