SOLUTION: Solve the following equations a.5^2x=8 b.3^2x+2 - 10(3^x) = -1

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Question 935435: Solve the following equations
a.5^2x=8
b.3^2x+2 - 10(3^x) = -1
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
Solve the following equations
a.5^2x=8
25x = 8
x = 8/25
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If you mean 5^(2x) = 8
25^x = 8
x*log(25) = log(8)
x = log(8)/log(25)
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Parentheses are free.
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b.3^2x+2 - 10(3^x) = -1
What is the 1st exponent? 2x? or 2x+2?