SOLUTION: 3^x-14(3^-x)=5, help me please to find exact solution

SOLUTION: 3^x-14(3^-x)=5, help me please to find exact solution

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Question 933171: 3^x-14(3^-x)=5, help me please to find exact solution
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
Multiply by 3^x
Then sub u for 3^x --> a quadratic in u.
Solve for u, sub back.

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