SOLUTION: Find the solutions of the exponential equations. e^2x-5e^x+4=0

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Question 930451: Find the solutions of the exponential equations.
e^2x-5e^x+4=0
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
Find the solutions of the exponential equations.
e^2x-5e^x+4=0
Assuming you mean e^(2x)-5e^x+4=0
Sub u for e^x
--> u^2 - 5u + 4 = 0
Solve for u
Sub back e^x for u
etc