SOLUTION: Hello I need help with this exponential equation 2^2x times 4^4x+8 = 64

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Question 804377: Hello I need help with this exponential equation
2^2x times 4^4x+8 = 64
Answer by solver91311(24713) About Me  (Show Source):
You can put this solution on YOUR website!


I presume the "+ 8" is in the exponent. Please use parentheses in the future so that I don't have to guess what you mean. Parentheses would have obviated the need to spell out "times" also.



Note that , so

And , so:



Take the base 4 log of both sides:



But , and since we get:



Then since (See why I picked base 4 for the log?)





John

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