SOLUTION: -3(.75)^x+1=29 If you could help me solve this I would greatly appreciate it. I keep getting a negative which makes the problem invalid...but the solution I was given (problem n

Algebra ->  Logarithm Solvers, Trainers and Word Problems -> SOLUTION: -3(.75)^x+1=29 If you could help me solve this I would greatly appreciate it. I keep getting a negative which makes the problem invalid...but the solution I was given (problem n      Log On


   

Question 322572: -3(.75)^x+1=29
If you could help me solve this I would greatly appreciate it. I keep getting a negative which makes the problem invalid...but the solution I was given (problem not worked out) was x=4.819
Thank you!
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
-3%28.75%29%5Ex%2B1=29+
-3%28.75%29%5Ex=28
%28.75%29%5Ex=-28%2F3
Yes, that's what you get.
There is no x such that when you raise (3/4) to that power will give a negative number.
THere is no solution.
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.
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-3%2A%280.75%29%5E4.819%2B1=29
-3%2A%280.24999%29%2B1=29
-0.75%2B1=29
0.25=29
No, x=4.819 is not a solution.