SOLUTION: If 7^-x = 1/4 , what does 49^x equal

Algebra ->  Logarithm Solvers, Trainers and Word Problems -> SOLUTION: If 7^-x = 1/4 , what does 49^x equal      Log On


   

Question 1043990: If 7^-x = 1/4 , what does 49^x equal
Answer by solver91311(24713) About Me  (Show Source):
You can put this solution on YOUR website!




so



Then



Substitute for and do the arithmetic.

John

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