SOLUTION: roots of 2^x + 12(2)^-x = 7

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Question 934270: roots of 2^x + 12(2)^-x = 7
Answer by josmiceli(19441)   (Show Source): You can put this solution on YOUR website!

Multiply both sides by

Let




-----------



By my calculator:

and




--------------
The roots are ,
check:




OK
and, also



OK

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