SOLUTION: Hi, I need help with this question. 81^x=1/729 So 81 to the power of what equals 1/729

Algebra ->  Expressions-with-variables -> SOLUTION: Hi, I need help with this question. 81^x=1/729 So 81 to the power of what equals 1/729      Log On


   

Question 809183: Hi, I need help with this question.
81^x=1/729
So 81 to the power of what equals 1/729
Answer by richwmiller(17219) About Me  (Show Source):
You can put this solution on YOUR website!
9^(2x+3) = 1
x=-3/2
81^(-3/2)=1/279