SOLUTION: how do i get the solution of 2(3)^(4x+5)-2=-1 (4x+5 is raised that's what the ^ stands for)

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Question 1166167: how do i get the solution of 2(3)^(4x+5)-2=-1 (4x+5 is raised that's what the ^ stands for)
Found 2 solutions by Alan3354, solver91311:
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
how do i get the solution of 2(3)^(4x+5)-2=-1
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IF it's 2%283%29%5E%284x%2B5%29-2=-1
2%283%29%5E%284x%2B5%29+=+1
%283%29%5E%284x%2B5%29+=+1%2F2
(4x+5)*log(3) = log(1/2)
4x+5 = log(1/2)/log(3)
4x = log(1/2)/log(3) - 5
x = (log(1/2)/log(3) - 5)/4



Answer by solver91311(24713) About Me  (Show Source):
You can put this solution on YOUR website!


















The rest is just arithmetic.


John

My calculator said it, I believe it, that settles it


I > Ø